where are the links for xmbc port?
The two ways I know of getting it are:
http://openelec.tv/
or
http://www.raspbmc.com/
Both work for me, raspbmc is slightly easier/quicker, I think it is also slightly better in the menu's but still a bit sluggish when you've got the menu up whilst playing a video, but then I'm not hugely bothered by that even if it can't be 'fixed'.
Am liking it though, and with me moving in the next few weeks to a place where I can actually have a TV it's just about perfect timing

I'm tempted to sell my second one on ebay, fetching quite silly prices but not sure I want to rip people off, might sell it at cost to someone at work as well but not sure yet...