I have Blueyonder surfree, I think its called
unmetered unlimited and all it costs is 9 quid a month as long as you have at least ten quids worth of normal calls a month.
They keep trying to sell me broadband ,but whats the point, 56k is fast enough for surfing sites like this, unless you download a lot of stuff, I don't see it as worth it.
If I have to download a programm patch it may take a couple of hours, but what the hell its not costing anything.
If I am not working I just log on in the morning and leave it running all day.
Good service blueyonder.