Well our experience with CS this week was
exactly the same as Russ, even down to being told the router was the problem - when on the second call to them Paul had removed it! The problem is still ongoing, (even though they said it would be resolved in 48 hours - it all started last Monday) and I've had no feedback from the Responsetek thing even though the auto reply told me I'd be contacted in 4 days.
Looks like today will be spent deciding who our new ISP will be!

I've already changed the phone provider - ntl will lose customers hand over fist at this rate.