it really depends on $. if you have the cash, Maim motorsports is the way to go. but, if you want a combo of traction and ride, then that gets a bit tricky.
you can try the KYB complete package that has the quads with it. that will ride better than stock and is only like $200ish. then add some good control arms to keep the power planted and then you have a nice mix. that is just my opinion. as far as shocks, FMS ones are nice because they dont lower it too much (and throw off the squat and launch geometery) and give it a nice agressive stance.