[dgaust]

Yep, I'm using it. It is very good, even though it's a pre-beta. There might be a public trial version out in a couple of days though.

Uses an SQL server to keep track of episodes, so you can store it on your WHS and access it from any system in the house. It also downloads the series info directly from thetvdb.com including banners and series graphics so it's all seamless.

It's a pretty well thought out app.