I'll second DFX. It makes an incredible difference in how your mp3s sound. Download it from Winamp and pay to register it. It is SO worth it.

Google Operating System has a few tips to make Winamp, a freeware media player, sound even better - and no, there's no need to buy a new sound card. Instead, you can check out the MAD MP3 decoder, ...

Stick to enhancer. I tried DFX for a while but didn't think it was worth it. Enhancer does a great job IMO.<BR><BR>I usually load up the 'General Improvements' preset and turn the ambience off. I like ...