The full nerd out:
In total (on my PC): 4 weeks, 1 day, 14 hours, 47 minutes (8920 tracks)
Ripped from CDs I own: 2 weeks, 4 days, 21 hours, 50 minutes (5783 tracks)
Legal, free net downloads (net labels, etc.): 4 days, 9 hours, 43 minutes (1181 tracks)
Illegal downloads, rips: 4 days, 6 hours, 13 minutes (1344 tracks)
Recorded vinyl I own: 2 days, 1 hour, 0 minutes (612 tracks)
I feel like I've just taken part in some kind of music otaku version of a penis-length-measuring competition, but I use these stats as a kind of reminder that, no, I don't need to go and browse the shelves of the record store and buy something semi-randomly. When I have my music player on shuffle on just the CDs playlist I still don't recognise heaps of the tracks when they start up.

Dumbness. And downloading drives me nuts... I can't believe how much of an addict I am.