And it's a Wii

I've played PS3, Xbox 360 and I just did not have the same experience as I had with a Wii.
I'm a real beyond casual gamer and if I play like 2 hours a month it's a lot, so this is a perfect fit for me.
So my next step is to get some more games.
I currently have Mario Kart and the wheel.
Wii Sports Resort and Wii Party.
Where can I obtain "classics" games for cheap and also, where can I get a Wii fit plus and a balance board for fairly cheap, or even second hand?
Thanks,

I've played PS3, Xbox 360 and I just did not have the same experience as I had with a Wii.
I'm a real beyond casual gamer and if I play like 2 hours a month it's a lot, so this is a perfect fit for me.
So my next step is to get some more games.
I currently have Mario Kart and the wheel.
Wii Sports Resort and Wii Party.
Where can I obtain "classics" games for cheap and also, where can I get a Wii fit plus and a balance board for fairly cheap, or even second hand?
Thanks,