Jerry, ... if you're happy with the key feel and only 61 keys on the PSR2000, you could also add a sound module instead of another keyboard. Takes up less space. Costs less too. Roland has some of the best sounds around I think, ... take a listen. And the XV5050 for example gives you 1400 new patches to play with. Add an expansion card for around $300.00 and you get an additional 600 patches.
ev