Best Integrated Amp, Price no obstacle?

I would look at the Dehavilland IOS, depending on your speakers' requirments, this tube amp may be very hard to beat.

I would highly recommended Primare I30. Consider it's price, one of the best. It's a killer, will beat even separates three time it's price.
You can find it for about $1500-1800 used.
Check this link: http://www.sumikoaudio.net/primare/products/i30.htm

Jeff Rowland Concerto (Latest generation of JRDG integrateds. 250 watts into 8 ohms. Very compact,very cool running, specifically by design. After 200 hours or so of run in, the sound has very pleasing,easy quality to it with no trace of ss brightness or harshness. The only other integrated with which I have experience and might be considered an alternative is the Plinius 9200, which, while accomplished in it's own way, it not in the same league as the Concerto.