I just got a Gecube Ati 4850 for a m8 for £108 inc delivery, dunno what Gecube are like never owned one but I am guessing the cards are all the same just with different stickers on them.
I've got a 10% voucher so the Powercolor and Gainward will cost me less than £108 and I'll get free delivery too once my post count rises a bit more.
Free copy of Grid too!