NTLWORLD
There was all the aggro over the 1Gb/day cap / fair use limit / warn point a while back, though no reports of anyone actually being TOSed.
There ARE reports, that heavy uploading is NOT toerated - the limit seems to be 300Mb per day. You may run local servers, but you have to keep the usage to reasonable limits.
SOME areas have forced transparent proxy, others don't.
Recent times have been very trying, and NTL seem to have absolutely NO fault tolerance - suffereing far worse with DNS problems combined with the undersea cable fault a while ago, though despite that, their uptime is quite remarkable, and when its good, the speeds are GOOD (but when it's bad, it can be VERY bad, for rather too long)
Some service elements are a JOKE.
Email servers are VERY troubled, up and down for a long time.
News servers also VERY poor, even for an ISP's included ones .... despite culling a lot of binaries on a traffic and capacity basis, the performance on what's left is miserable - I'm a triallist on the new server, though the annoucement of the trial was followed next day by an annoucement that it was suspended due to server problems.
NTL? I'm seriously considering ditching them for ADSL - the way I'd uses it, if I switch to Metronet's unique PAYG ADSL, I'd actually recoup the startup costs in a year.
http://www.metronet.co.uk/adsl/paygo
It's not for everyone, and you don't save much on the 1 Megabit plan for light use - there are probably better providers at that level, but a 512k service for £10 per month (plus a bit extra for traffic) - there are dialups that cost more than that.
On any cheap ADSL though, you always pay ALL the startup costs yourself (activation, modem etc.) - it may pay to start with an "all inclusive" provider, and serve out the 1 year contract.