So I am building a new PC after many years of using the same old system. I have all the new parts (gtx 770, core i5 4670k, asus z87, 1600 8gbs ram, and a 120gb ssd). I have my old 1TB WD blue with all my games, documents, powerpoints, etc. with windows 8.1 installed on it. When I put together this new build (I want to put the os on the ssd) what should I do? Do i connect both the ssd and the hdd to the motherboard and then select the ssd to boot from? How would I access my old data? Thanks.