If you choose to go with a New Integrated Amp, You might want to consider Bryston's B100SST. Audio Adviser has one for $3,000...thats $1,700 under list price because it has been replaced with the B135 SST2. The B100 SST is basicly 95% of the B135SST with the same 180 wpc output @ 4 ohms.
http://www.bryston.com/products/power_amps/B135.html
These are Transparent Amplifiers and will Faithfully Reproduce what ever you feed it. I can't say enough good things about this amp. Even at full list price, for me it was worth every Cent and is the Amp I've been looking for for 30 years. Check the Reviews yourself, I found it actually sounds better then the most optimistic review I have read. To fully appreciate it use it with a Good Clean Source and Highly Coherent Speakers and you will be rewarded.
Another Outstanding Brand is Magnum Dynalab. They sell some very good Certified Pre-owned Integrated Amps and Recievers for $1,500 - $2,000 with a Lifetime Service Policy (with I think a $75 deductable). They also have a Fine line of Hybred Integrated Amps, that provides Tube Warmth with the controll of Powerfull SS Amp in one package at prices I believe are closer to the Bryston Amps.
http://www.magnumdynalab.com/integratedamplifiers/stereointegratedamplifiers.htm