Get yourself a dedicated desktop (not a laptop)
I use adobe audition 1.5 � 3.0 is ok, never warmed up to sonar or pro tools, it�s up to you. I only use audio so 128 tracks is good.
Add an audio card, I recommend, RHE sound card,
Get a mixer � I have a Heath and Allen mixer
Run your keyboard to the mixer, then to the audio card and run the outs to your speakers.
Beachbum,
I have done a lot of research and the RME sound cards seem to be indeed among the very best in the market. You adviced the HDSP 9632, but I would rather prefer an external solution, should I in the future change PC (and motherboard). Do you have any experience of the RME Fireface UC?
RME Fireface UCAlso, what Heath and Allen mixer are you using?
Thanks.