I just bought a Wii. I know I'm late to this party but I had to wait until I had the money to buy

I also bought Wii Fit to go with it because honestly that's what it's all about for me. Finding ways to move my body that don't completely feel like torture. Sometimes I think I need to remove all comfortable furniture from my house so maybe I would be forced to stop sitting. all. the. time.
I'm looking forward to stepping on the thingy and letting it calculate my BMI while watching my little personalized Wii character blow up into something

What I wanted to know from anyone who has the game system, what else do I need to get right away? I bought the game console which comes with Wii Sports. Then I tacked on Wii Fit. It will probably only be me using it but there is the possibility I may rope my son or BF into doing it with me sometime. So do I need to buy extra remotes, a charger, any of that kind of thing? I'm just looking for recommendations. I am assuming that the 2 things I bought comes with what you need to use it. But since I've never even seen one before, I have no idea what one needs to use it!!!
So, if anyone can tell me what I need I would appreciate the info and it would be wonderful to hear from somebody who LOVES their Wii and who has lost loads of weight using Wii Fit. Success stories, if you will. Anybody? Buehler?