A great tool for tracking bid and watching items. The lower window lets you display an item and it can be customised to display the key features of items you are interested in. It doesn't integrate with IE the way SnipeMonkey does, but it has a convenient floating button for adding items. You can keep multiple files of items and it autosaves and updates if required. Can be used to snipe, if required.
Sadly, this hasn't been updated for some time, so it doesn't capture all the information about a bid it once did. However, I've not found anything better for watching ebay items (or perhaps I'm just used to it). With a update to support the latest Ebay formats, it would be a winner.