I'm trying to figure out the best SSD for my somewhat limited budget (no more than $250). Storage isn't a problem - I've got two 1TB hard drives hooked up - a Samsung Spinpoint F1 and a Western Digital Caviar Green, and my primary 320GB is getting to be a bit full and overcrowded. I plan to use the primary for just the OS and a few main programs, while running everything else (games, etc) off the Samsung drive and continue to use the WD drive as my primary storage. Should I get a 64GB or a 128GB? I don't think I could go 250 or more due to the extreme costs of running such drives.