The Nokia NSeries are all cool phones, especially if you want a lot of multimedia options. The N91 has 4 gigs of memory, a 2mpx cam and an mp3 player. I've heard it's a good idea to get some different earpieces from the ones that ship with it.
If you want something similar but not necessarily a Nokia, The Samsung E900 is very cool and growing in popularity. In a similar kind of market niche - and hugely popular - is the LG Chocolate KG800. My preference out of the two would be the chocolate, as it has styling very similar to the black iPod. I'm not sure about pricing, but you're probably looking at around $600-$800 for either.