Well just got Pipex Broadband connected a few days ago. What a massive improvement in every way. All the hardware plugged in and started working straight away with no wierd and wonderful setup procedures. The only bit was they said they'd email me to let me know when it was up and running but didn't. I got fed up in the middle of the afternoon and tried the connection anyway and there it was working perfectly. Probably only going to see the sun down route now.
Just under £18 for the equipment, free activation (you are tied to them for a year) and £23.50 per month for 512k. (Connects at 576k perhaps someone can explain that)