Virgin Media are offering £150 cashback at Quidco for NEW customers.
This means that you can signup for the 10Mb package and it works out to be equivalent of £10.17 per month for the first year.
This is also a great deal if you're thinking of signing up for their 50Mb package, which is unaffected by Traffic Management. I also believe that 100Mb Broadband is coming soon, so you may be able to upgrade easily through your contract, I doubt they will upgrade all 50Mb users to 100Mb for free, but they did upgrade some lower speed customers to 10Mb in the past.
10Mb Package Example:
Phoneline - £11 per month (£132 per year)
Broadband - £12.50 per month (First 2 months free) (£125 per year for first year)
Self Installation Option - £15 (£35 if you want them to install it)
Total first year: £272
Quidco Cashback: £150
Total first year: £122
Total per month: £10.17
Total per month (if you want them to install (£35)): £11.83
It works out cheaper to get a Broadband with a phoneline, even if you don't use it.
I know some people complain how awful Virgin Media are, and sometimes they my be, but I've been with them for around 5 years now and everything has been perfect. My current 10Mb broadband has a maximum of 9.4Mb to around 8.9Mb, so it's near enough the top speed, definitely faster than what I would get with a BT line.
The cashback at Quido reduces to £50 at midnight tomorrow, so make sure you order it before then.
Quidco link: http://www.quidco.com/virgin-media/
Virgin Media: http://allyours.virginmedia.com/
I hope I've done all the maths right, please correct me if I haven't!