Hi hopalong,
I have been using Sky Broadband, as part of the See, Speak, Surf package that gives you your TV and telephone calls too. I have to say that I have had no real problems with them. It is always fast and is easy to use. You get a number of email accounts to use as you do with other providers.
I am not sure how much Sky broadband is on its own but we pay �26 per month for our calls (free evenings and weekends to uk landlines), our TV (2 channel packages ie Entertainments channels, News & Documentry's, Childrens channels, Music) and the broadband.
Hope this helps
Kimbles