Have you thought of going used and specifically B&K amps. It seems like some are prematurely dumping their B&K gear due to their bankruptsy and subsequently being bought out by ATI. Some really good amps on the used market right now. Here are a couple of suggestions for your setup. No affiliation with these ads.
http://www.audiogon.com/cgi-bin/cls.pl?ampsmult&1294320529&/B-K-TX4430-Compare-to-Referenc
http://www.audiogon.com/cgi-bin/cls.pl?ampstran&1295921102&/B-K-EX4420-2x200-watt/channel-
I own both of these amps(not ones in ads) and could not be happier. Powerful, neutral/warm, quiet, cool running with my Klipsch RF-63's.
Bill
http://www.audiogon.com/cgi-bin/cls.pl?ampsmult&1294320529&/B-K-TX4430-Compare-to-Referenc
http://www.audiogon.com/cgi-bin/cls.pl?ampstran&1295921102&/B-K-EX4420-2x200-watt/channel-
I own both of these amps(not ones in ads) and could not be happier. Powerful, neutral/warm, quiet, cool running with my Klipsch RF-63's.
Bill