Logic, sorry to hear about your Adelphia experience but I can assure you, the Bellsouth DSL is great, support and all. I have had Ultra DSL since Oct. 2003, and just got Extreme DSL(3.0 Mbps down, 384Kbps up), and its incredible. Yeah the upload isnt too great, but for only $45/month, you cant beat it. Called support twice, both times didnt wait long at all, and my question was answered immediately.
There is definitely no cap at 256k, I usually DL at around 500k and get spikes pretty often of around 2Mbps. But I just got it, and am the only one in my area that has it. So those may not last long. I dont know about the upload speeds though, havent tested those yet, will try to and get back to you.
I highly recommend
Bellsouth.