It seems BT are "kicking it up a notch" and are planning to offer 300Mb/s broadband, which they will role out in spring next year.
I'm on a virgin media "medium" package, which I belive is 2mb/s? I wouldn't recommend virgin though, there support is lousy, and the internet and TV have a disturbing habit of shutting down even when the word rain is mentioned, let alone when it actually rains!