Source once had HORRIBLE surround sound. Even worse than HL1. Then they fixed it. 
Eh, just getting the higher quality sound may be enough for me. I only have 2.1 speakers right now and they work fine, I probably couldn’t set up 5.1 in my room anyway. I’ll decide when I actually get enough money for these anyway.
Is it worthed it though? I mean if you´re going to get a surround set of speakers, you might as well get a mid range creative card and spend half for what´s going to sound the same, no?