Gord, welcome. There's a bunch of receivers within that budget that'll work well with the M80s. Although problems driving them are suggested fairly often, it seems rare that someone's actually experienced a problem. The M80s in the past were often described as an "easy 4 ohm load". Pick the features that you want the most and don't be overly concerned with power ratings; all the likely candidates will have more than enough except for a really big room. Some good choices include the HK 635, Onkyo 703 and Yamaha 1600.
