I'm looking for a set of good 5.1 Speakers, with a digital plug, 3.5mm. Anyone have a recommendation? Currently using some Logitech's X-530's's they were 80 bucks back in the day, but i was looking at the following: Logitech G51 But I can't tell if there is a digital plug. Anyone have any other recommendations? I'll go to 7.1 speaker's as well.