G'day I'm with rlipset too. I must have about 150 servos. Most are Hitec. I have found them to be readily available, good quality and a good price. I think they are handled by Model Engines here in Oz. I also have a few Futaba and JR servos but have had less problems with Hitec. The HS-422 is a good cheap all round servo for trainers etc. Its ball bearing version - the HS-425 is an excellent all round servo for up to 60 size models. The HS-485 give more torque at a good price and the HS-645 is great where you really need some grunt. The little HS-55 and HS-81 are what I use in small electrics.

Hitec, and JR use the same plug while the Futaba plug has a spline on it but other than that they are electrically the same.

Have fun.

Mike in Dubbo.