I bit the bullet recently and decided to significantly upgrade my PC sound. I purchased a pair of 200's (didn't have room for the 170's) and Sonic Impact's $29 T-Amp. After about 2 weeks of listening, I can easily say they completely obliterate any other 'PC' speakers on the market. Clean, open, wide, and transparent. I love them. You can actually hear Norah Jones breathe. Amazing.

The downside is that recordings that aren't recorded, mixed, and mastered correctly sound like crap. This setup doesn't hide anything.

Bravo Ascend.

I can't wait to replace my home theater setup!