Shop around for what's in your budget, the listing in the above post is gonna be a tough deal to beat. Just make sure you get a charger that is designed for peaking NIMH packs as they are different than the NICD's you have now.
NICD's are old technology and anything you find now that's worth spending money on is going to be NIMH.

go to Tower's web site and you can get an idea of what a charger is going to cost ya.

http://www.towerhobbies.com/


LOL Duster beat me.... Liisten to what he has to say and you'll be ok.