welcome. i was hear not too long ago asking similar questions myself. im surly no expert and still dont know most of what the experts around here talk about, but thanks to everyone here that helped me, i am now a (stealth) taper and have successfully taped a handful of shows. the expense factor was a big conern for me too. the biggest thing is to get a rig you will be happy with for a long time (if not permanently) to begin with so you dont go cheap, get some bad gear, and then want to upgrade soon after. that will just be a waste of money.
heres what i did:
if you want your gear to be cheap but still with good quality, an iriver (h120/140/320/340) is the way to go in my opinion. you can get a used one on ebay for a pretty cheap price if you keep your eyes open and have some patience. as for mics, Church-Audio STC-11 Cardioid Mics are great, and get yourself a BAT-2B (battery box to power the mics.) get the last two used if possible if you want to save more cash. thats what i got and i lucked out and found some good deals; got it all for a total of $200
iriver h320 (used on ebay) - $70
mics and batbox (used from a member here on taperssection) - $130
most irivers on ebay go for more than $70 but if you keep your eyes open, and have some patience, youll find one eventually that will fall under ppls radar so you can grab it for cheap. as for the mics and batbox, well i got lucky on those too. found a guy to sell em both used for a really good price. the mics alone when theyre new cost around that much
now to your questions:
1. i believe so yes. the experts here may disagree but to my knowledge, i dont see why a good pair of carioids wouldnt be appropriate for any venue type. you just may have to adjust your gain to accomodate (if you dont know what gain is, i can explain. it took me a while to know what ppl were talking about when they said "gain")
2. it is best to mount them high. if theyre down low, too much stuff in the way (like ppl) and the sound wont have a clear path to the mics. so higher is better. i never used to wear hats to shows either. im not a hat person anyway, but now that i tape, i wear one. a hat is the way to to in my opinion. the mics are as high up on you as they can be that way
3. there are two kinds of mics that are regularly refered to and used by tapers: cardioid (cards) and omnidirectional (omni.) omni caps are little capsules that go on the end of your cardioid mics to make them omni mics. the difference between the two i cant really explain that well, as i dont completely understand how it works. all i know is the omnis take in sound from all angles, or at least multible angles while the cardioids take in sound from where the mics are pointed at. have someone else that really gets it explain how it works. anytime someone tries with me i get confused as to what the hell theyre talking about, lol
4. cables, well it depends on the rig you get. if you have my exact rig, the only cable you need is a little guy that connects the river to the batbox. then the mics plug into the bat box as well, and thats it. i dont know the nam/kind/size or whatever of the cable i have, it came along with the mics and batbox that i got from the member here. so i dont know how to tell you what cable it is. sorry
5. you shouldnt, but im not positive. the bat box should power either cardioid or omnis all the same
6. hm, well, if you want warranty, iriver is out of the question. because they dont make them anymore. the only way to get a new one is to find somethat that has one that they never opened. you cant buy them from a store or manufactorer. if you want cheap but still good quality, a used iriver is your best bet. if youre absolutely against getting a used recorder, youre price range is going way up. danger of buying used mics and bat box...well, if they wernt properly taken care of, all kinds of things could go wrong. you might get feedback with the mics, the bat box might not provide as much power as it should if its too old and has a bad connection or something. im not saying dont go used, because i did, just make sure who you get it all from says they are in great condition. check the yard sale here on taperssection, ppl here are the best of the best so im sure you wont get a crap piece of equipment that is damaged or not taken care of
7. this all depends on what you consider to be a good and bad recording. the wrong mics and wrong venue thing might not be that big of a problem. as long as you have good gear, and have the gain levels set appropriately for the type of venue and loudness of that venue, it shouldnt be too big of a problem. at arm length, you will have a lot of things in the way. if you think about when youre at a show, standing behind people, where are your shoulders? they are prolly to the upper back or shoulder level of the person/people in front of you. so if the mics are pointed there instead of up high, above everyone's body, the sound will have to go through everyone thats in your way to reach the mics. if they are up high (head level, like with a hat) there will be far less in the way for a direct path of the sound to go into your mics. so i would advise getting the mics as high as possible. use a hat. as for digital processing in post recording...it depends on how good you are at messing with the recording. audacity is a good program and has been recommended to me a lot. also "cool edit pro" i think another one is called. you can certainly make a recording sound better with altering it, but you cannt make a shit recording into a good one. if its shit to start with, theres usually not much you can do. but if its just a matter of removing the boomy bass sound, or making it louder, that can be done
good luck, and ask anything else you need