Oh, forgot to mention, Hitec makes servos and really stands behind their products. I don't own Hitech, but so many people have reported that if /when the servo fails (like stripping gears) they just send it in and Hitec fixes it free and fast. Since you're new and crashing and being new go hand in hand, I'd recommend one of those.

Savox and Radio Post stand behind their product, but warranty turn around is a hassle (hoops) or takes forever (personnel experience).