Thanks for input chaps.
Currently have TV and BB (the free one) with sky and line with BT.
My trouble is that because of distance from exchange, my ADSL up until recent exchange upgragde was only 1.6mb and now is 'only' 2.5 where as if I go fibre I'm told I should get 40mbs and they guarantee 15mb hence being keen the change.
Plusnet deal is good as it's half price until the end of today and the cheaper line rental is if you pay 12 months in advance, then its £10 a month extra to go to fibre.
Unfortunately I'm not in a cable area so Virgin is out
James - I have the 3 deal on my mobile but the trouble is if you try and watch any volume of streaming media through it they know it's being tethered and throttle you right back. This used to happen at nationals when I was trying to watch premiership games on my laptop.