www.rc-monster.com is the best complete resource for 1/8 brushless info. Most of the current standard setups, etc that everyone is running came from there.

The one thread on rctech is good too, for specific 1/8 buggy talk.

The best place used to be radiocontrolzone... and still a lot of good info in old threads.

There are so many options for you I don't know where to start. In the near future I expect to have a factory-built 1/8 electric buggy or at least a factory-made conversion. This is for one of the "other" brands though... not AE,Losi,Kyosho,Ofna...