I get around 45-55 actual. It's rated at 512kbps, so it's only around 10K/sec lower than my theoretical max. Not too bad.
I have SBC though, and while the service has been fairly good (less downtime than when I had @Home cable or Comcast cable), the company itself is absolute shit. Worst company I've ever had to try to straighten anything out with, boy did that suck.
The reason I ask is my service is suppose to be 768k up and 6 meg down. Recently I've be U/Ling torrents at 109kB/s which works out to 872k. I'm not complaining. I just think it's odd that I'm getting those speeds.