Power amp help


Need a power amp to go with the Adcom GFP565 pre and Thiel CS2_2s. Here is what I'm looking at.
Bryston 3B-$450.00 + shipping
Acurus A200 - $400.00 free shipping
ATI - ATI AT1505 $500.00 min plus shippin or ATI AT1202 $495.00 plus shipping. I am leaning towards the Bryston. Any advice would be greatly apreciated. I have no way to audition any of them.
gofish
Thanks for your input. Speakers are 4 ohm. Bryston 3B info - 200 watts x 2 @ 4 ohms
Then assuming your room is not too large and you listening volumes are reasonable, this is probably the minimum power you would want to go with (100 wpc @ 8 ohms). I've never listened to the Thiels with Bryston, but I am sure there are many other posts of the combination.
When I had 2 2s Classe was the amp. I had great success with the CA100. 100/8 ohms, 200/4 ohms. The amp did run quite warm but that was never an issue.