I'm thinking very few people likely do this, but I created my own online database w/ a CGI script. If you're comfortable with CGI, hand coding and have your own web server to play on, you can get it for free (open source) from
Extropia. Inventory Manager lets you set it up basically however you like. Although I didn't do this, you can create your own drop down fields for things like condition (new, mint, etc...) or check boxes if you want (for yes/no inputs). The tough thing however is maintaining it as I tend to put it off. Here's my
loose parts list if you want to see. The nice thing about it is that its sortable and searchable. Might be just like your MS Access - I know nothing about that.
IGN also has a nice system I've noticed as a lot of people seem to use their account on that to keep track of their game titles.