Parasound makes good amplifiers. If you are just needing two channels, how about a pair of Outlaw Audio monoblocks? Lots of power, complete channel isolation. Marantz used to have monoblocks, too, not sure what they offer now, but they were once a great bang for the buck play. NAD has always produced great amps for smaller budgets, as well. Rotel makes good stuff, too.

That should get you started.