Mt.Gox GBP spot rate + 7% @ time of transfer for ~6 confirmations.
Postage has to be recorded to a UK address.
Special delivery is currently £5.90.
2nd class recorded is currently £1.45 but you only have £46 insurance with that.
i.e. today £100 = £107 for the fee, £112.90 for the insured postage x 7.1011 Gox rate = 15.7722043064 BTC
Also, I reserve the right to withdraw the offer and reverse in the event of wild rate swings >30%
Tesco sell all sorts of things and everyone's got to eat so I hope this is a helpful cashout option now for UK people, especially with Intersango in flux & ID requirements and charges from Gox.
-j
I'd be interested, I'd love to do my weekly shop with my BTC, but 7% (well, 8-12% with shipping) is a bit high when soon I can just pay with my bitinstant mastercard for less...