If you have a good jack set and a torque wrench and someone to help you hold the sway bar in place while you put it back on the control arms its pretty easy. The best brand in my opinion is maximum motorsports. They have more research than any other company into their LCA's along side Griggs. MM recommends FRPP uppers with their lowers, but unless the bushings in your uppers look worn i'd skip them and see how happy you are with the lowers alone.
I have the MM's with spherical berrings on both ends of the arm. They make the quadshocks extraneous so you can remove them ( i did and get no wheel hop). They are noisy for a week or 2 after install, but afterwards you won't notice a difference. If you want to do it right, get these.
-wade