I just bought a 350d (rebel xt) about a month ago. I love it! It is less $ than the 20d but still has some great features, more than enough for me. Some important differences for a concert photographer between the 20/30d and XT is the XT as 1600 ISO whereas the 30d has 3200 I believe. The 30d also has a spot metering mode in addition to the xt's matrix, center-weighted, and center-area exposure modes. Anyway, despite all the "xt feels like plastic" comments... The xt is still pretty solid if you've been using a point-n-shoot for a while. Personally, if you're on a budget, I wouldn't even flinch to buy the xt body. The most recent posts on my website (see sig) have a bunch of shots from the XT at 1600 ISO with no flash, which are less than ideal conditions, but still came out alright considering the noise you get at those high ISOs. Also, this guy shoots his stuff on the XT, and his shit is pretty damn pro-looking to me... <SMILE>
http://www.boudist.com/
you can get the rebels up to 3200 but i think you have to do the hack for it (just a firmware change)
to answer the previous question- all EOS lenses are compatable with the digital bodies. The only specialties are lenses you dont have (ef-s lenses).
Don't go to ebay for this go over to
www.fredmiranda.com/forumhere are the questions you want to ask when buying a used digital slr:
What kind of condition is it in? (you want to know if there are any major scratches or a lot of nasty rubbing- this will tell you how the camera was used. obviously the more damage the shorter the life of the body)
how many clicks are on the shutter? (this is going to be an approximation as you can only get the real count using cancount.exe and that only works on 1 series bodies. anything under 20k snaps you are in good shape. the rebels are rated to 50k clicks on the shutter as is the 20d i believe. i know of people getting 75-100k clicks out of them though. thats a lot of photos)
Was the camera ever dropped or has it ever gotten wet other than typical light rain/splashing, etc.
Where was the camera purchased? (check the retailer to make sure they are an authorized canon dealer)
Do you have the original accessories including manual, Canon battery, charger, and warranty card? (warranty card can be key to getting service sometimes)
Do you want fries with that? (just seeing if you are still reading at this point)
Has the camera ever been serviced by Canon?
Have you ever encountered any backfocusing problems (this was a problem more with the 20d's but I've heard of it being in the rebels as well- some of the nicer glass in combination with the bodies were causing the cameras to focus improperly)
And then all the typical questions about references and whatnot. It is not unusual over at fm for someone to only take money orders or to require you to pay shipping and paypal fees.