I use the FTP on a PIII with a 1.2G processor and 1G of PC133 RAM. I did it just to see if it could be done with an old laptop I was tossing in the trash. It seems fine. I like the Pro best because it has inserts, and using the 'loop' saves precious CPU. With no plug ins, I have had 20 tracks going, and no crashes. Knock wood. Actually, I lied. It will crash if I try fancy 'stuff' like fade in, or pitch shift. If I just record basic instruments (and all my effects are 'live'), I have had 20 tracks, as I say. I've mixed them down, and emailed the 'song' no problems.