hi, anyone and everyone please help. i am building my dream computer and im leaning towards the dell2707wfp monitor. i will be using a pc , xbox360 and wii on this monitor (or at least the pc and xbox). i will have the pc through dvi the xbox360 through vga and the wii through component. now i will have logitech z540's or better for speakers and i need them to work for all the machines audio. how can i achieve this obviously the pc has onboard audio card with 5.1 signal (green /orange / black plugs). the xbox360 has red and white rca cables and so does the wii. if these speakers arent good enough then im willing to pay some more for better ones but i want 5.1 audio from the wii xbox and pc to go to the same speakers. if theres any other ways to plug the connections like optical or something (im no audio guru) please let me know. thanks.