I would recommend Game Station if you have one near you.

Some shops give you the standard wii (sports, nunchuck, remote) then you can select a couple of extra games from a selection, but gamestation allow you to choose ANY game(s)

They will also let you replace the game within 7 days if you dont like it.

Also, if you open a store card at the same time, you get 200 points for opening it, then added points for buying the Wii, which in turn you can use for money off a second nunchuck/remote if you wanted.

We spent £260 ish and got the wii, 2 games, second remote and second nunchuck