i am buying a new pc because my old one pci slot will not work but for some reason the second pci slow will work but will not display anything on screen. so am hoping my old hdd that has everything on it will work with my new pc also can i use a ssd for a boot os only and still have a os on my hdd.also is a ssd really worth it.and here is my new build take a look is it alright http://pcpartpicker.com/p/HqQdWZ my psu is another thing that is coming to my new build it is a 620watt