I have a white 13in macbook 2.16 intel core duo w/4gb ram and an apogee duet. i currently have logic studio 8 but am about to get 9 and the new mainstage that comes with it. i play solo acoustic gtr/vox gigs. i think the possibility of recording background tracks in advance to add texture to the solo stuff is appealing. i wouldn't do anything like prerecord drum loops or try to make it sound like a full band, just maybe some bass, pads, bg vox, etc to add some texture. to do this, though, i would need to do a separate mix with a click track for my monitor. i think i could accomplish this by creating a bus track with the built in headphone output and use the duet's for the mains. so, i'm not talking about having a lot of tracks or plugins running at the same time, but i don't know if my white macbook can handle all that. what do you guys think? is it even worth trying or would i be better off to just stick with the regular PA setup and maybe work in a loop station for the bg stuff?