Windows 7: connecting an xbox 360 to vga or dvi

i really want to buy my self an xbox soon, however, i dont like doing things on my tv, i feel more connected in my computer room. my monitors are farily large for close use. the monitors already have a input switcher built in, but i only have a vga and hdmi available, no hdmi, limiting compatability, anyone know if there is a cable that comew with / for it that i can use to do this?