If you can, buy Wii points directly online, EB and JB sell the cards for $35 for 2000 points, whereas you can get 3000 for $45 online.
I loved Galaxy, it's a fun game thats gets slightly more difficult as the game progresses, and collecting those purple stars is a right royal pain.
For multiplayer you cant go past Brawl, MarioKart and Warioware.
I also recommend hunting down Excite Truck, that is one of my top 3 racing games, I'm forever going back and playing it again.
Looking For: Wreckers Saga TPB Collection (with Requiem)