My friend asked me to help him install a Corsair GT force 3 into his computer last weekend. Everything went great ... but holy crap... he only had SATA II. Even using that SSD with a SATA II port, I can't use my computer anymore and I have a WD caviar black. I was blown away with shutdown/bootup times and the few applications ... explorer menus that popped up instantly... It was only SATA II... So I must ask... why do I not have one yet? Anyone have any experience with the Agility 3, Vertex, or GT Force they would like to share to help me pick one out? About how much gigabytes of space do you typically use it for? Which applications do you use it for? Anything wrong with using it for all applications if you have enough space (kill performance?) So far, I'm thinking about getting a Corsair GT force 3 - but want collective feedback about SSD's in general.