Thanks for all the replies. Right now I'm not sure how much benefit I'll get from FTTC, my connection at present is a rock solid 8meg connection on a line which should only get somewhere in the 6meg range, and I cant see myself needing video on demand etc so the jury is out right now.
As to my original question I dont see why suppliers provide locked devices where the user has no control, too much like 1984 to me and for me is a significant concern from a security point of view, I have never trusted the likes of BT and others and to have no access to the internal setup of such a device is a no-no for me. OK I could provide my own block by connecting via a second router but that just seems stupid.
Maybe I'm a bit paranoid about security but that's just me...

Stuart