ok this is kind of a complicated situation but anyone that responds thank you alot. first of all i have a dell laptop with a wireless pci card. i have a desktop computer in the basement with a cable modem and a router. i am about to purchase the logitech z5500 speakers. i dont have a sound card except for a headphone jack and mic in on my laptop however. soundblaster makes one for a laptop but my wireless card already fills the slot. do i need a soundcard for the z5500s, which have 5.1 and dolby digital features, and if so what kind of set up would i need? Thanks alot