Thanks alot for taking the time to help me, Sharp!

Im going to go with a nady setup, I just dont think the logitech has the punch im looking for. This is what I plan on getting.

The Nady http://www.nady.com/products/product_pgs/prospeakers_pg1.html
or http://www.nady.com/products/product_pgs/prospeakers_pg4.html
Its 10$ cheaper, is there a reason why is cheaper?

And the Pyle Amp. Is it a must to use a mixer? I plan on plugging it directly from my Roland XP-60 to the amp, and using the KB's control.

Thanks!

Phil