Marik, read all the links chess supplied, but within the dollar range you mentioned I'd suggest that the HK525 can fit in there, but if you can go a bit higher(it can be found around $800)the Pioneer 45TX deserves strong consideration.
Don't worry about the maximum power ratings on speakers; that's about how much that they can take without going up in a puff of smoke, not how much they need. Most of the time speakers use about 1 watt. On brief moments at high peak sound levels they might require 100 watts or more. These receivers can do that and won't limit the potential of the M80s.
