That's true, but it has to be the right size plug, I dunno if some high-end systems use the big plugs or not, but if you get one of those, you'll need a converter.
Anyway, the ones I use are JBL Creature II's in black. They have really nice highs and good bass if you adjust it right, and it matches perfectly with my case. They are kinda pricey for a 2.1 system but it sounds really good to me. I got them for $90.