I occasionally play live music with a few of my buddies, and it's likely that I'll use my soon-to-be-purchased iMac to handle some of our music tracks. I'll probably get Logic at some point, but I'm likely spend more time playing around with multi-track songs in Garageband. In recent years I'd basically given up on Garageband because I'm using an 8-year-old G4, and anything more than a 6-track, 2-minute composition would become excruciatingly slow if I were lucky enough not to overpower the machine. But I am the type of guy who probably would if the computer can handle it noodle around with a couple dozen tracks or more in a composition. I expect that this and Photoshop CS5 projects (usually single-photo editing, but a couple times a year I will work on multi-layer, panorama images that could get up to ~400mb in size) are the most taxing work I'll be doing with the machine. The most intense gaming I do is the Civilization series. It's possible that what I'm talking about wouldn't tax even a two-year old iMac, let alone the low-end refresh model, but I don't have a clue how to translate the specs into music capabilities. Most of the benchmarks I see refer to video and gaming. Some insight would be appreciated.