I'm not sure if I've mentioned it previously, but my current CD/Ogg/MP3 player of choice is Quintessential Player. I was never much a fan of Winamp — if only because its fixed-pixel interface becomes concerningly small at 1600x1200. But, don’t worry, Quintessential Player still supports skinz.
I used to use FreeAmp, but its interface always had little quirks to it. And, at the moment, I can’t even get its webpage to resolve (I hope it”s not dead).
Of course, I prefer the sound quality of CDs for everyday listening, but Quintessential Player suits my needs when I have an Ogg to play. And, it’s also freeware (I don't deal with shareware anymore, these days).