Although I have an iPod with Video, I use my SLVR a lot more. It is always with me and I can listen to music and podcasts without headphones. (That little speaker is pretty loud)
I was using a ROKR until a couple of days ago when I got an e61. ROKR was just an interim phone for me until I found a smartphone that I liked. Great phone (ROKR) for the price AU $170- with 2 memory cards. But I'm really loving my e61, can't be bothered waiting for iPhone.