After migrating from UKFSN about 4 months ago, I went with plusnet, depends on what you want, but the unlimited service I find is good, you are told the throttles up front and there are no caps. Only minus side is that now they have an 18month contract for new signups. But if you are a light user (<10Gb/month) the light user is £11.99/month for most people or £5.99 if you are on a Market 3/4 exchange (the home page will give details)
Get in-touch with me if you decide to go with them and I can have a recommendation discount ;-) -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.ubuntu.com/UKTeam/