Beersmith actually does have a calendar in it. If you go to the menu bar, under 'view', you should see a calendar that you can look at. It will automatically add fermentation, bottling and conditioning dates as you set them in the recipe, its a little know feature, but it is always there. As far as I know, Beersmith doesn't have a log for keeping an inventory of the beers you have, it does ingredients, but not actual beers. But, I could be wrong, as I've never looked for that feature either.
Draft 1: Lightly smoked Weizen
Draft 2: Belgian Wit
Draft 3: Rauchbier
Primary 1: German Scwarzbier
On Deck: Belgian Brown Ale, Pale Ale, Stout