New Super Mario Bros Wii - £31.95 delivered.
This appears to be the cheapest pre-order price.
I know 7dayshop may not deliver this as quickly as other online stores, but this is for my kids for Christmas, so I am in no rush.
Credit Card charge when items sent not on placing order (according to their terms and conditions).
Any one else spot it cheaper elsewhere, then I am happy to go there!