good set of speakers

I'm not very tech savvy so maybe someone could help me out. I'm looking for a speaker system that I could hook multiple consoles up to at once without having to swap cables constantly. I was also looking at some type of switch thing but I'm not entirely sure how they work. I'm looking to hook my 360 and ps3 up to them. I use VGA for my 360 and HDMI for the PS3 if that helps.

thanks