I'll help a bit, and might as well get out the inevitable...
People here seem to really like the Sony xxxxes line of digital receivers. I don't have any experience with them, so I really cannot comment on their relative performance compared to any of the other digitals amps. I have used The panasonic line, both the xr-50 and now the xr-45, and mine is modded quite a bit, like 900 bucks bit I guess it came to. If you like clean, detailed, refined, shiny, bright (although this term is not applicable to these units once modded), go with digital amplification. It's price/performance ration is unparrallled in the industry. It would take 3 grand or more IMHO to get the same sound with analog amps. I will post a review here of my modded bolder panasonic xr-45 once I get it finished, the unit is stunning to say the least.
Assuming that takes care of the amp end, let's talk speakers. There are a ton of great sounding speakers out there, especially if you haven't heard higher end speakers. My personal favorite is the direct to the end user lines of Rocket and Swan for their price performance ration, but you can and should do better if you are willling to top 2 grand in this area. Check
audiocircle.com,
audiongon.com,
head-fi.org, etc for never ending opinions on what sounds great for 2 grand, the possibilities really are endless. If I was investing money over a greand or so, I would head to your local shop, audition a bunch of speakers, then search for a low price on-line and see if they wil match whatever it is you decide on, or at minimum, come close once you factor in shipping.
Cables: IMHO, speaker cables are absolutely vital in a home theater or two channel audiophile setup. You can spend 100 bucks, or you can spend 20 grand here, it's all up to you. If you want t6o start cheap, go with the home depot or vehnaud cat 5 designs, they can't be beat for what they are. I am currently using Bolder M-80's, which are realitively cheap in audiophile land, they run about 150-250 bucks depending on length and are light years better sounding then the aforementioned varities. If you want to spend more, check out some of the manufacturer's pages at audio circle, mostly independant dealers with little overhead who are very helpful and honest.
Digital Cables: There ARE differences in digital cables. Get a good high quality one and you will be happy. Spend 50 bucks or more, and don't buy anything Monster, it's horrendous. Great deals on sillver cables at http://www.cryotweaks.com. If you want a direct link, I can dig it up, PM me.
Analog interconects...if you have the need, a great starter pair of silver cables should help here. I am a big fan of the sound of silver, some are not, use your ears, grab a couple pair, then resell the ones that didn't work out. Also, a lot of the smaller companies out there offer 30 day home trials minus shipping, take them up on it. The Bolder Nitros smoke, but are quite pricey. There is a guy on audiogon selling silver interconnects for less that 50 bucks shipped priority, and they are easilybsite for him is comparable to 200 dollar plus interconnects at a fraction of the cost. I can find the add if you want me to.
That's all for now, if you have any questions, I will offer what I am able.
Daryan