I'll agree with the good advice already given here. M80s or M60s would both work well as fronts esp if your not using a sub, and will both integrate well with the VP180 for which it was targeted for. Having said that, you should consider another possibility....you could use your M22's as fronts combined with the VP180 and a sub to cover the lower end. The M22s are still in the same "family" as the towers and SHOULD work well with the VP180 since many users have found the M22s(and sub) to be sonically close to the M80s. That combo could save you some $$, otherwise I'd go M60/80, VP180 and Q's as surrounds/rears, or M2's as rears if you have room behind the listening position so they can disperse properly.
You have pre-outs which is a bonus if you need to add an amp, but try your receiver out first, you may not require it and as Chris mentioned, leave the AVR on the 8 ohm setting.
