KPStewart,

www.servocity.com is a pretty good reference on hitec and futaba servos. they have specs listed on the site and what i have found to be a good price. sometimes you may find cheaper but they are gonna be close. I recently got a batch of 625mg's for a h9 twist and a cg extreme-330. i'm using hitec 5925's and 5945's in a bigger plane and have loved their performance to date. good luck!

Wade