I've started using these. Seem to be strong, cheap and fast.
http://www.amainhobbies.com/product_...-Digital-Servo
Also seem to be able to get them locally (at least in Sweden) for only 8-10 dollars more than the AMain price.
Not broken one yet, which with my record (6 servos in under 2 years) is going some. I switched to these as they are cheap enough, despite the quoted spec, to be almost disposable.