When I first started buying music with my hard-earned paper-round money, I bought vinyl: singles and LPs. Now I almost exclusively buy CDs.
A few years ago my lovingly put-together hi-fi system was relegated to the bedroom and my computer became my main music system. Music is heard via NVIDIA Soundstorm and the consistently great Videologic Sirocco speakers.

I use a 250GB external harddive to store my CDs in MP3 format. These are the tools I use to organise my music collection on the computer.

1. First I use CDex to convert the CDs to MP3 format. I have set CDex to convert at a variable bitrate (minimum 128 kbps, maximum 320 kbps) using the LAME encoder.
2. I then run the MP3 tracks through Musicbrainz - this changes the tags so that they fit in with a huge database that is maintained by music-lovers from all around the world. This process is useful because it ensures that all my MP3 files are named and catalogued consistently using ‘Artist\Album\Artist-Album-TrackNumber-TrackName.mp3‘, e.g. Bob Dylan\Saved\Bob Dylan-Saved-05-Solid Rock.mp3.
3. I currently play music using Winamp. It automatically scans any new MP3 files and adds them to its media library.
4. I have recently (Sep 05) signed up to Last.fm. This site tracks what music I have been listening to and provides information on my top artists, top tracks and various other bits and pieces.
I have just listenened to my 1000th track and my current top artists are:
1 Bob Dylan (67 tracks)
2 The Decemberists (45)
3 The Kinks (43)
4 The Fiery Furnaces (39)
5 Neil Young (36)
6 Neutral Milk Hotel (35)
7 Bob Dylan and The Band (30)
8 The Jon Spencer Blues Explosion (25)
9 Tindersticks (22)
9 Happy Mondays (22)
9 The Mountain Goats (22)