its hard to say whats going to be the best parts to use at the moment.

People in the US are using http://www.robotmarketplace.com/product ... MINI2.html
Kenny is also using the Scorpion Mini

and for motors some of the mfa motors at technobots look ok,

Im using a 2x5a sabertooth in my full body spinner.

the 10a syren controllers look ok. anyone used them?

the modified brushless controllers look ok, there will be a few of us using them. might be worth seeing how they hold up over a few fights before alot of people get them.

you could always go for a 2x12a. They are more than capable of running any beetle and are proven to work in feathers so you cant really go wrong with them. and they dont weigh much.