i just got final cut studio and it says i have to have a mac os x 10.5.6 or higher to install. right now my comp says i have a 10.4.11 and ive clicked software update and nothing for this comes up. ive searched and found some higher updates but when i try to do them it says i have to already be on 10.5 to upgrade. so whats the best way for me to get to 10.5.6? anything i need to know before i do this?