And you need your IP. I have a dynamic IP. It's a bitch to change it every day.
one of the biggest reasons cable is better than dsl
There is static IP for DSL =\
Which costs more
I did tech support for SBC DSL for a while, I can't say for other ISPs, but SBC prefers to minimize the amount of equipment they require by keeping relatively low lease times on IPs which results in often changing IPs. You can greatly reduce the frequency at which your IP changes by using a router that keeps the PPPoE connection alive for a long time.
Conversely, Cox (my Cable ISP, again I can't say for others) has a system that calculates your IP based on the connecting modem's MAC and the connecting computer's (or router's) MAC. I've only had to update my DNS records that point to my local domain 3 or 4 times in the past year. 2 of those were directly related to hardware changes that I made and 1 was due to physically moving to a new apartment.