Nitsud, i don't know how you feel about buying pre-owned gear. But i have 2 Krell amps powering my M60's and vp180. the amps i have are rated for 250W@8ohm, and 500W@4ohm, on ALL channels.
i have a Krell KAV/250a3 and a KAV/250a2
here is a link to a review of these amps.
http://www.hometheater.com/poweramplifiers/9/these amps were manufactured around 1997, they are getting older, however they are built like a tank.. If you look on audiogon, you can usually find these amps that have been recently sent to Krell for service, my 2 channel was sent for a service about 2 months before i bought it, the gentleman still had the receipt that showed how many transistors had been replaced during the service.
i paid about 1,500$ each for my amps. however i bought mine in 2008 at the depts of the recession, the prices have been coming back up a little bit.. These amps are a good value now... while they are not new, they also are a no compromise product.
Good luck with your decision.
