Will I have a problem with the 150 center & QS8's (6 ohm speakers) being run by the 7200? Thanks

Nope. The 7200's a brick. It can take just about anything you throw at it.

except bricks.

Thanks, I don't want The Beast to overheat & go into self-preservation mode.

Pretty much the only thing that will overheat are your ears. This setup will give you some serious enjoyment.

As further reassurance, I currently use 6 ohm fronts (only) with my H/K 525. It has no problems. Runs little hot, but the fan's never been on. (unlike the poor double hard drive TiVo that lives above it...)

Thanks everyone. The 150 center & QS8's should be here next week & the 60's should be another month or so. Y'all have eased my mind.