What sequencer do you use, if you don't mind me asking. The only one I really ****ed with was Cubase and I didn't notice any difference between Mac or PC. That, and some other program that was like the Mac equivalent of Acid for the PC but I forget the name. Honestly, the main reason I stuck withthe PC is because I'm a Cakewalk user and am much more comfortable using that than Cubase for audio.