B.B.
I bought Wii Fit about 6 months ago and find it to be really fun and easy to motivate to do. Once I start it's hard to stop. 45 minutes flies by. I find that it helps with my balance and according to Dr. Oz balance is a very important aspect of staying young. I would suggest doing more of the running on Wii Fit if you want to burn more calories. You'll find that it's alot of fun and your kids may enjoy doing it too.
FYI, to lose weight for your wedding you might try having a protein shake for breakfast and adding 3 tablespoons of flax oil. It will keep you healthy and burn fat.
Have fun!