Chips, there are a number of receivers that will do just fine with m60s and EP500. The most commonly mentioned brands are Denon, Yamaha, Pioneer, and HK but, I've been using an Onkyo TX-DS797 (forerunner to the 703) for more than 4 years and have been very happy with it. The 603 would be just fine.

You can pick up a refurbished 603 for $219, plus shipping, at eCost.com. A new model can be found for $100 to $280 more, depending on the vendor.

Onkyo TX-SR603 Review

Jack

"People generally quarrel because they cannot argue." - G. K. Chesterton