I would just get Mario Kart for now. The wheel is epic and the game play is very addicting. Also, hook it up to the internet if you can. It adds another dimension. Between Wii Sports, Online, and Mario Kart, you won't need another game for a while. Let them get bored of those before you move on. My wife also like Wii Play but I found it a bit unpolished compared to Wii sports, so that's your call.
Make sure you get an extra controller so you have at least two. The batteries last a long time so I wouldn't worry about rechargeable battery packs right now. We have had our playing for over a month every day and our remote still show full battery power. If you have multiple systems and only one or two inputs on your TV, make sure you get a switcher. We have one that had four inputs since our TV only has one, so we can switch between the PS2, Wii, and anything else we want to connect.
Make sure you get an extra controller so you have at least two. The batteries last a long time so I wouldn't worry about rechargeable battery packs right now. We have had our playing for over a month every day and our remote still show full battery power. If you have multiple systems and only one or two inputs on your TV, make sure you get a switcher. We have one that had four inputs since our TV only has one, so we can switch between the PS2, Wii, and anything else we want to connect.
Gunmetal Tower
(20 items) |
HTPC/Home Server
(17 items) | 
|
| CPU | Motherboard | RAM | Hard Drive |
|---|---|---|---|
| Phenom II x4 955BE | ASUS M4A785TD-M EVO | G.SKILL 2 x 2GB DDR3 | Western Digital Caviar Green |
| Hard Drive | Cooling | Cooling | Cooling |
| Western Digital Caviar Black 1.5TB | Noctua NH-U9B SE2 92mm SSO CPU Cooler | Noctua NF-R8-1800 80mm Case Fan | Noctua NF-R8-1800 80mm Case Fan |
| OS | Monitor | Keyboard | Power |
| Windown 7 Pro x64 | Sony Bravia 42" LCD | Logitech Wireless Combo | OCZ StealthXstream II 500W |
| Case | Mouse | Mouse Pad | Audio |
| Silverstone GD05B | Logitech Wireless Combo | Couch Arm | Yamaha RX-V361 |
| Audio | |||
| Sony SS-MB350H | |||
| View all | |||
|
Gunmetal Tower
(20 items) |
HTPC/Home Server
(17 items) |
|
| CPU | Motherboard | RAM | Hard Drive |
|---|---|---|---|
| Phenom II x4 955BE | ASUS M4A785TD-M EVO | G.SKILL 2 x 2GB DDR3 | Western Digital Caviar Green |
| Hard Drive | Cooling | Cooling | Cooling |
| Western Digital Caviar Black 1.5TB | Noctua NH-U9B SE2 92mm SSO CPU Cooler | Noctua NF-R8-1800 80mm Case Fan | Noctua NF-R8-1800 80mm Case Fan |
| OS | Monitor | Keyboard | Power |
| Windown 7 Pro x64 | Sony Bravia 42" LCD | Logitech Wireless Combo | OCZ StealthXstream II 500W |
| Case | Mouse | Mouse Pad | Audio |
| Silverstone GD05B | Logitech Wireless Combo | Couch Arm | Yamaha RX-V361 |
| Audio | |||
| Sony SS-MB350H | |||
| View all | |||
