I picked up some new hardware on Friday evening to replace an aging iMac. I'm impressed, perhaps more than I though I'd be. Having been spoiled with a Dual-G5 for quite awhile now I didn't know if the iMac would really stack up. So far it's great.
A few tips. First, get Apple Care for $119 and then go down to your local Frys or other electronics store and buy 1GB of RAM for $89. You'll end up with 1.5 GB of RAM and an extended warranty for roughly the same price as Apple's $200.
The Mighty Mouse is much more impressive than I thought in the few times I've tried it in the store. It's still sitting beside my Logitech trackball much longer than any previous Apple mouse would (even being plugged in is pretty amazing by my historic standards of Apple mouse loathing). Read more about Hardware