ok i'm moving in with my girlfriend who has a small apartment.. she wants to use her pc.. i want to use mine.. but i dont want to set up 2 whole systems.. i just want to hook 2 towers up to 1 of everything else..so heres the deal.. i know i can use my monitor for both hooking my pc to the dvi and her's to the vga and switching back and forth with the source button.. what i need to know is there a way i can hook the same keyboard/mouse and possible speakers to both of them and be able to control which one it works with at a given time?