I am thinking of purchasing solid state drive. Rumor has it that windows 7 is ready for these drives. I know that a good controller will deliver the speeds claimed by manufactures . How big of a ssd drive do I have to buy to facilitate Windows 7?? Can I get away with 30 GB? I know page files start filling up on the drive, so I definitely need breathing space... What drives deliver fast read/write without braking the bank?? I am sure there are hidden gems out there..