I quite like the ISP Be. It's fast due to ADLS2, and whilst I don't get the full 24Mbps, I am happy with the 15Mbps I manage - especially as there is no traffic shaping or restrictions on it's use that I have ever come across. There is one thing that annoys me a lot. You need to use their SMTP servers to send email with your email client (which I am perfectly happy with), but I can never find the details of the server quickly when I want to. So, here they are, once and for all, to aid my memory:
smtp1.bethere.co.uk

Bethere pop server
To cut a long story short, Be utterly refused to give me the name of their incoming mail server unless I went through "security". Imagine that, a simple piece of info that pretty much amounts to public knowledge yet it's top secret! This unguessable, highly classified info is listed below, just don't tell anyone. :-)
incoming mail: email.bethere.co.uk