Need help deciding on Rotel Amp for 5.2 sys

Surround speakers typically don't need a ton of power, they are used for atmospherics more than anything on a movie track. That would mean a 3-channel amp might suit your needs, but those amps are a little more rare on this site than the 5-channel variety, and you'll be able to sell the 5-channel amp more easily, I think, if you don't like it. If it were me I'd go with a 5-channel amp, because I don't like the idea of the power coming from two different sources in the rack.
Regarding brands, research Parasound, Anthem, Emotiva, Proceed, and Outlaw, don't just go to Rotel. I've been there are better sound is available for not too much more $$$. Also consider the availability of local service in your area, if possible. I try to only buy used gear that can be serviced locally. Amps are fairly simple to work on, but still I'd make a few calls.

Totally agree on the B&K brand, had intended to mention them but was at work. Hence the typos in my previous post. I also have B&Ws in a home theater, and also suffer from a lack of power. I have chosen to place all my attention into the two channel system for now, so my HT sound is still lacking, but only have so much to spend. Please post how you decide to go so I might live vicariously.

Just my personal experience, in my HT system, Denon AVR/all B&W/HSU sub, I preferred the LCR at full range, I just thought it sounded better. YMMV. Of course now, I have absconded with my sub to the two-channel room in the basement, don't even have a sub in the HT and don't really miss it all that much. Most nights when we're watching movies, the kids are asleep upstairs, and the wife plays volume games with me throughout the movie...