i have added ssd drives to a custom pc i built and also added one to my laptop,they are well worth the money,make sure you choose ahci in bios before installing and turn system restore off,windows 7 will enable trim support so you should not ever use disc defrag.the speed increase you gain on everything from boot up to opening and running programs is very noticeable,wei scrores my ssd drives at 7.7 where a normal hd will never top 5.9.