I dont like 5.1 systems for computers. I have a 2.1 system and keep all my wires/cable relatively neat but it can be a pain sometimes. I couldnt deal with 3 extra outputs in my 'work' area.
I've owned the
Creative Labs I-Trigue 3400 2.1 for over two years and they are plentry good for tunes and tv/dvd on the computer. I think I paid 49.99 after rebate when Comp USSR was running a deal.