i can assure you that for 15 pounds o2 doesnt have web, and for 20 pounds it does have web

fair usage is hit and miss- in fact its just rubbish- no one i know has ever been stung on it.. i had a voda contract for a year and some months was downloading 5gigs worth and never got asked to limit my usage..

when you say its not an option to have a 24 month contract thats fine- i understand- but you have to rember that in this case you can save 200 quid by doing - therefore you can buy your new toy anyway....

not a problem

on ly problem would be switching networks- not buying a new toy