There are some really good software packages out there (apparently) for keeping track of your wine...that's if you can keep it long enough to actually warrant keeping track...

Uncorked Cellar is one of them. You can download a free trial version, it has a numbered wine tag system for each bottle, a virtual wine rack so you can visually see where all your bottles are, and a built in guide for over 90,000 Australian and Overseas wines which also tells you the optmum drinking ages. It includes a 'getting started' section, a glossary of wine terms and personal help if you need it...

I have downloaded the trial version and will enter my meagre collection into it and see how I like it.

Let me know if you find any others worth a mention!