I am also in the UK here are a my most played 3 games at the moment.

Fire Emblem: Radiant Dawn - SRPG Turn based if you like that kind of thing. This is the best wii game I own, I have spend about 50 hours on it already.

BWii - A bit short to play through but hard to get Supereb on all levels and has on-line play

Tiger Woods Golf - I have 07 but 08 is out now. This is my most played game in terms of hours spend at about 70

Super Paper Mario - I had to add this as I really have enjoyed this game a lot.

I have avoided telling you about the very popular games as I must confess to not getting as exited about them as some people. Although I am still yet to try Mario Galaxies and I'm sure I'll love it once I do.

Costco just got this game in for $15.99.  I was just going to rent the game but the way you and someone else talked about this game, I cannot pass up this price.  If I don't like it, I can just sell it on ebay for what I paid.

BTW, Mario and Sonic at the Olympics is $35 at Costco, if anyone is interested. 

With any of the following games, you can't go wrong:

In order from excellent to very good (imo):

Super Mario Galaxy
Zelda Twilight Princess
Metroid Prime 3 Corruption
Mario Kart Wii
Resident Evil 4 Wii Edition
Zack and Wiki
Super Paper Mario
Medal of Honor Heroes 2
No More Heroes

First off, buy off of vgc store!!! An extra day or two won't kill you.

Seeing that you have no games now really. There are a ton of games you could get. Here's a few of my top 10 in no particular order. Top four highlighted.

Mario Galaxy
Zack & wiki
Mario Kart Wii
Zelda TP
Metroid Prime 3
Super Smash Bros Brawl
Okami
Resident Evil 4
Godfather Blackhand
Wii Points Cards, so many great vc games and wiiware cometh!

1. Hmm, get TP, if you already beat the GC version(like me) get Okami.
2. Mario Kart Wii, it is Mario Kart, a great game to have around to play with friends, or online.
3. Fire Emblem: RD, it is a very long game, and you will get your moneys worth...

*If you don't like RPG type games switch SMG for Okami/TP, and MP3 for Fire Emblem.

thanks for all the recommendations i got No More Heroes today + Points Card + Classic Controller and i ordered Mario Kart Wii off the web.

Good for you......

like what I say better try the freeloader with US No More heroes if you have the chance...however you still got the best killing control on earth...look here http://www.vgchartz.com/forum/thread.php?id=23205&start=0 ,  Warioware (single player,tho you can take turns) is recommended for your 1st step of mini/partygame collection, and Rayman R.R 1 for multiplayer, remember not RRR 2...

NMH is a great game, you wont be dissapointed with it

I'll put my vote in for Metroid Prime 3, at the very least RENT Twilight Princess and Mario Galaxy.

And good grief, you're asking this question when you haven't already gotten brawl? what's wrong with you, get moving! Didn't notice the Europe issue, nevermind