EE - EverythingEverywhere, new network, has LTE right now
No confirmed price for the 32/64Gb but Apple Edu store says From £529 so its assumed that the 16Gb is £529.
Just discovered it after I was Googling 'LTE in UK' lol. Thanks for your help anyway.
I will order through quidco or similar for cashback to swallow up that £30
Apple rarely offer cashback through Quidco/TCB for new product lines. It'll be around a good few months (i'm guessing 9+ months) before they start offering cashback for the iPhone 5. You'll have to pay that £30 i'm afraid.