Well basically I've been really bugged hearing more noise from my hard drive, and weird Windows 7 bootup. So I have a WD 2TB green hard drive which I currently store my OS on, as well as everything else. I get a bit of a weird boot up usually, this is how it goes - So first the Gigabyte mobo thing comes up, as normal, then it takes me to the Windows 7 loading screen, like the one before the log on screen, that takes a normal amount of time, and then it will give me a black screen for usually 2 to 5 seconds, and then takes me to the logon screen. It usually will not play all of the Windows 7 boot up tune, like you usually only hear the last two notes of it, and that's a bit annoying, but once logging in it's usually fast enough. Just irritating. Also a lot of the time my hard drive makes a whole ton of noise, regular clicking noises, but very often, usually straight after login, which also leads to vibration of the case. I'm just wondering if these are the sort of things that will be helped if I get an SSD for Windows 7 only. And also what I know would be a pro, is that if my hard drive died which it will in about 1 and a half years, I'd still have an OS and wouldn't have reinstall it. But I don't know if I'd spend the money just to get that. Also, what size SSD should I get? I know a lot of people get like 250GB or 128GB and then go ahead and only use it for the OS, but surely the OS doesn't take up that much? I mean I thought it would be around 4GB it would take. Anyway I've got my eye on this Intel one that's 40GB and only like £30-£40 so should I get that or more? Thanks.