So I'm a buyer on the fence. The sensible choices for me are the newest iMac (top end) or the low-end PowerMac (1GHz single). The way I add it up, the iMac is $1799 (plus other options) and the PowerMac (with 80GB drive and Superdrive, to compare with iMac) is $1725, plus a monitor ($700). You also get the L3 cache on the PowerMac, as well as FW 800. I'm thinking that the $625 difference is a lot for FW 800 and the L3 cache, even with better expandability. Am I crazy to choose the PowerMac?