Trying to decide what to get my two oldest for Christmas. I've been working an extra job so I have about $200 to spend.

Questions:
1. If you had the same decision... an indiv. game vs wii which would you choose? why?
2. Where is the best place to buy each?
3. If you were deciding between a DS Lite and a DSi what would you choose? (my kids are 9 and 7)

I keep going back and forth and could use some input.

Thanks!