Yea, the ball bearing turbos do spool faster and eat a little less HP...but we are only talking about a 200RPM help in spool, or so I have been told. Like 3600 VS 3800RPM full boost. But that all depends on price, if its worth it or not to YOU.
Anyways, here is what you guys will need.
Electronic boost controler (I got the turbo smart E boost 2..$475)
1 waste gate (up to 500HP use a 38MM...if your going above that you need a 42MM one so you dont have boost creep)
CLICKY for one thats good to 1000HP
1 50MM BOV (
SOMETHING LIKE THIS
Go on Ebay and buy the flages with gaskets for the waste gate, and the turbo.
Count up how many silicon connectors you will need.
Count up how much piping you will need
Get a SCT BA 2400 MAF
Count up how many V band kits you will need for the exhaust side
Definatly need some header flanges and header collectors
Then you guys can go down to autozone and get the hoses and clamps for everything (make sure they are good....probably be better to buy online)
You will also probably need another air filter.
Thats all I can think of right now, but im sure I missed some things...GOOD LUCK!