i use emagic logic 5.5 on PC. it does everything i want it to. ive used logic pro on mac. the main things needed, 5.5 does it. logic used to be underground. now its apple branded and on the lips of every mac user. and 40gb logic studio? sigh. no need. no need. loops? please........ my 5.5 has built in synths just like logic pro, most of them are there.....ive had it for years, and i have NOT even managed to browse through EVERY preset in every synth. theres that much. and we use third party VSTs anyway. i would buy logic for mac. if it was just logic and jsut the built in synths. its turned in to a bundle suite with excess bloated baggage. i wonder what happened when apple bought emagic. did they keep the german employers/developers or get rid of them and use new apple logic employees...............i wonder waht happened. its kinda sad. the vibe of emagic logic has gone. if it aint broke......leave it alone.