This is useful info, as my old Crate amp is on the fritz!
As for your new keyboard, I would ALWAYS recommend a Kurzweil.
Even on the lower scale, like a PC1x with Classic Keys ROM.
I get 95% of my live sounds off my PC2R module--as of yet I haven't found the need for anything else. We play modern rock with that late 90's and classic rock feel. I couldn't be happier. The patches sound like the instruments they're supposed to be. The Hammonds could be stronger, but you've already got something for that, and I'm hoping to purchase a clone at some point.
When I go to the music stores and try the latest Roland, Yamaha or Korg offerings, I find that the patches are much too stylelized, and really sound far from the instrument they're trying to be.
Other than that, the Nord line of keyboards is pretty nice. I've been itching to play a Nord Stage, because it seems to have everything a classic rock cover artist would need.
Power Mac G4 / M-Audio Delta 1010LT
1Ghz | 768MB RAM | Mac OS 10.4.5
160 GB Internal | 250 GB Ext. USB 2
Yamaha MG10/2 Mixing Console
Logic Express 7, Cubase SX & Deck 3
Kurzweil SP88 / Kurzweil PC2R w/O / Yamaha TX7