[quote name='greenbags125']True, Apple isn't really good about their first generation products. I would definitely wait for the second generation, or as its commonly know by Apple insiders, Rev 2.[/QUOTE]
First, not an 'insider,' but I think they refer to Revs in letters. So it's Rev A, B, so on.
Second, I know that repair shops say they see more first gen Macs than Macs of any other gen, but isn't this true for most products? I don't know if it is. Furthermore, I wonder if the notion that Apple's first gen isn't so hot isn't more myth than reality. Stats to back these kind of things up would make it easier to accept.
From what I've read on rumor forums, the x32 core duo iMacs are fine. However, according to rumors flying in many directions (and perhaps conceived just to grief Mac fanboys), the MacBook to be released in Feb (march?) may be significantly rushed to market.
I think the dilemma now for people looking for a new Mac is to figure out if you want a 32-bit machine/OS or if you want to wait on an annoucement about 64-bit machines/OS, which should be dropping from Apple any time now. People forget the speed improvements you get from 64-bit, especially if you're using your machine for things like scientific computing. This is the decision I'm mulling over. It would be much easier to make if Blizzard weren't releasing the unversal binary for WoW in only a few weeks--makes me want that iMac ASAP.
But to bring it all back on topic, I don't think the intel macs are going to totally destroy demand for PPC products. There's still a market for PPC stuff out there, it's just that Mac owners have to accept that the intel macs make those PPC products appear less trendy. A used PPC will still give you a lot of utility over the next 1.5-2 years, which ain't bad if you can find one for a decent price.