In my brief time on the forum, I've read in this thread that people are using Tamiya (high quality), AE 6/7 shocks, and the Yeah Racing (medium quality bladder) shocks. If you search this thread you'll see them all mentioned.

I'm using the Yeah Racing shocks and so far so good with the exception of the springs since I got the 60mm kit and not the 55mm. Again, search the thread and look for posts from SteveM, he's the one who used the 55mm's which need a bit of a touch up to fit and work better.