Rolling Your Own Internet Connection?

budGibson asks: "Recently, I have become interested in rolling my own Internet connection using a T-1 or T-3. I realize this means maintaining my own DNS, routers, etc. A quick trip to the local phone company's web site suggests this is possible, as does a tour around ATT's data services division . I know that Slashdot at one point in time was going over a T-1 before co-location. Are there any non-vendor resources on what I need to set up my own on-site connection? Are there any tips on what to avoid? What to ask for?"