Thanks gonk. I may consider either of those for:

1) since they are coming out sooner
2) I'm not sure all my speakers can handle the 300W ( though I don't plan on having it up to max ever)

Still, the 790 does sound very inticing for one reason:
More Power!!!!!!!

As far as Ritz's question; I've done a lot of PA systems and just have a fondness for the XLR connection, it seems to be more solid and yes I guess less noisy.

I will admit, that with what I have now, I do seem to get some hums every so often, but that may be the 2 S-video cables (with an extender adaptor) running beside my front and center speaker cables. The hum definitely seems to get louder the whiter/brighter the picture is.

When I upgrade to the 990/790 I'll upgrade my video to a full HD, instead of the old analog I have currently, and use a nice DVI-HDMI cable from Outlaw that should reach the distance fine (hopefully cancelling that hum problem)

Thanks for your input.