I too have AT&T Broadband and yes, it is faster than current DSL in most California areas. The thing with cable is that you're on a shared line (you and your neighbors "share"). Which means with more and more users on the same cable line your Broadband performance will slow down and have "hiccup" performance (in the same day you will have different lo/hi bandwidths). Shared also translates to easy access to your computer (If I wanted to I am able to go into most peoples Broadband connection easily and see what's going on).
DSL is a little bit more private but slower that current Cable offerings. Cable will be the way to go for a couple years since they burst(??) the signal every so often (more bandwidth). Best thing to protect yourself is to get Nortons Internet Security, this will setup a firewall and prevent people from getting into your computer. A pop-up will appear if someone is trying to gain access to your computer asking if it's okay or not. Without it you really don't know.
