I should start off by saying I'm new to this website, and I've never built a PC before. I've fantasised about doing it for years, but I never took the leap. I don't strictly speaking NEED one as I have a console and a laptop that take care of all my needs, but I would like a gaming desktop. That being said, this is what I was thinking of putting into it:
My question is this: instead of buying a new OS, can I take the hard drive out of my old desktop (the motherboard broke and I never got it repaired) and use that alongside everything else. It had vista installed on it, and my plan was to upgrade to windows 7/8 on that and have a hard drive dedicated to the OS, seeing as how upgrading is cheaper than getting it brand new. I don't know any details about the hard drive I'm afraid, but I'm fairly sure it was SATA. Is that plausible?
Equally, the spec I laid out above is just shy of £550, but I would ideally spend less seeing as how I would like to get a new monitor. My current one is 17" and 720p if that's relevant. I have never overclocked either, and probably won't, just in case . If I can get a worse version of something to save money and not lose much then that would be great!
Hope the post isn't too muddled and I'm asking this correctly. Thanks!