Have a look in GAME. I picked up a GC, Mario Kart, Zelda bonus disc (4 games) plus a couple of Star Wars game (Bounty Hunter and Clone Wars) for €150, which should be £100 in the UK, assuming that they use their usual conversion. Even if you don't want the games, you can knock the MK w/Zelda pack out on eBay for about £60, and the SW games for 10-15 each which should work out so that you get a GC for a tenner.
Personally I'd advise you to keep the MK and Zelda pack, as MK looks like it could be a goody (haven't played MK enough yet, but the Zeldas are pretty much regarded as classics), but obviously it's your call.
Admittedly I can't guarantee the price you'd get on eBay, but it seems like a win-win.
Bounty Hunter
One of Star Wars racing games I think
Very Good deal , but sorry to say it's no longer on Game's
web site ! !
I was going to get one of the packs , and I already have a Cube ,
as it was a good deal