For some years now, I've been thinking of switching from Windows to a Mac, problem is, the family has been unwilling to dive in the last several times I've had to buy a new machine. From what I've read here on the Mac's handling of GTD, I think I may finally have an excuse Here's primarily what I'm looking for: A powerbook or equivalent able to run OS X fairly if not very well. Must be able to network. Not new due to cost considerations, but not ancient. I figure anything within the last few years should adequately work.

My question is, does anyone know of any sites that may provide reviews and/or sell used machines? I've tried the typical ebay/craigslist searches without much luck.

Thanks!