sounds and programs for keyboards???

well, if you wanna use it live, you'll need a good laptop...
but if you wanna use it just at home/for recordings, you just gotta get a MIDI cable, plug it in the comp and get these:

- Absynth 2
- FM-7

both are from Native Instruments. These are THE BEST softsynths there are. There's another one pretty good that emulates the NordLead, but i forgot it's name :p

You can download both from eMule.