I got my 2nd generation iPod at Best Buy on one of those no interest for X number of months (6 for me I think.) Anyway, I got one for my girlfriend a few months ago and shopped around for new ones and essentially the price for all the models were similar at all stores. I just dont think it's something you can get a deal on.
Oh and like jmcclain, I am totally biased, but I love mine. Havent had any problems with it and in a few months it will be 2 years of ownership for my 20 gig.