I'm thinking of building a new pc but i usually suck when in comes to computers. The thing is in my new computer i'm gonna be re-using my old hard drive. Does this mean that i won't need to worry about installing the OS or whatever? I know i'll need to download and install drivers and stuff but is there anything else i need to know with regards to software? (Apologies in advance if this sounds like utter noob-fodder)