What I'd really like is an iPod touch with 32Gb or even 64Gb. 16Gb isn't really enough for me, neat as all the other features are. So I'll probably go with the 80Gb Classic, and then see what the next generation or so brings.
Of course, if someone out there (say, someone in California :-) ) were to give hints about what the next generation of iPod touch would bring and when they might be released, I could be tempted to hold off on purchasing just yet.
(next week on "Help David make decisions" (hey, I'm crowdsourcing !) : Should I get a Macbook Pro, or standard Wintel laptop ?)