go to the pokerstars.com page. look under VIP promotions tab (or something close to that), and click on their calculator.

however, dont take anything for truth under 25NL or .50/1 LHE because you need an $8 pot to earn an FPP.

the Silver Star bonus is a bit cheesy, but better than nothing. the Gold Star bonus is "ok," but the Platinum+ bonuses are decent.

good luck getting to Gold+ at the microstakes. its pretty much impossible. look around and find better, more rewarding sites, to play.

US friendly: Absolute, UltimateBet, FullTilt, Cake jump to mind. but, some of those dont have the most credibility anymore. just use caution if you are a US player.