Becoming a CLEC?

eric76 asks: "It finally happened. DSL has come to the town where I work in Texas. While most would see that as a plus, the problem is that I work for a small ISP offering dialup and fixed wireless. The $26.95 / month DSL could drive us out of business. So I'm looking at what it takes to become a CLEC (Competitive Local Exchange Carrier). That is, we'd become a local telephone company purchasing telephone service, particularly DSL, at wholesale from the ILEC (SBC) and reselling it at retail prices. Has anyone else gone through this? What did it cost? How long did it take? Is there a minimum size to make it worthwhile?"