With all due respect for your Yamaha 5730, M80s are great speakers and deserver a better receiver. You probably know this anyway, since you're only buying it for the next 6 months. What is next if I may ask?

Axiom M60s, QS4s, VP100 Onkyo TX-SR804 Oppo 970HD Rotel RB-1080/RCD-1072 REL Q150E sub, PS 3