I've got the emax rack classic without scsi & i have no complaints at all. floppies are slow, but it's not painfully slow. (Were talkin about less than 720K here) However, if you can add SCSI, it would be dope.
That's dope that you got a library with it. I got couple hundred floppies with mine. Most of the sounds I got sound like they came from the Top Gun or Ladyhawk soundtrack, but a lot of them are pretty inpiring & nasty.
I agree that the keys are huge, but if you have the space and you need a good set of keys, you're set.
I used the emax for the drums on this track:
http://thehessian.com/musick/Jadakiss-W ... sian_Remix)192.mp3
peace