Hi Biggs. I am with IG Click which is a £50 joining fee and £30 per year for 24/7. But you don't get 24/7, well not now anyway. The abusers put a stop to that. There are random cut offs but somehow it is still a good deal. With the work I do on PPRuNe I have clocked up 425hrs since 16/9 and it has not cost one single penny.
However, for £10 a month with NTL, which you get back if you make £10 worth of calls a month, you get 24/7 - a true 24/7. But cut off aftertwo hours. You can go straight back on but it wrecks long downloads. Unless you have D/L Accelerator which does resume. A mate has NTL and it works a treat.
You still have to pay BT for your line rental of course.