ok, so i recently went to a girl talk (mashup artist) concert, and returned with a bleeding inspiration to create my own mashups. i tried on garage band, but quickly realized that you can only adjust the tempo for the entire song, not individual tracks. i then spent a long time trying to find dj software. my problem with those is that i can't edit it like garage band. so what i'm looking for is something like disco dj, which allows you to alter the tempo of individual decks, but something less real-time-ish, that you can go back and edit, cut things out, copy, paste, etc. if you understand what i'm saying, and you have any suggestions, please help. p.s. the program girl talk uses, and how he uses it, is in this video. http://youtube.com/watch?v=KykbPtRb0K4 thats basically what i want, but he uses windows, and i need something for mac. it seems pretty simple, i guess. and thanks a million to anyone who has any advice. this is something i really want to do.