If you are looking for an aquarium for your Mac, try Marine Aquarium. It works as both a desktop application and a screen saver. Marine Aquarium costs $20.

You can download more stationery for Mail from iPresentee. They have created some high quality theme stationery packs.

For those times when you want to take a world tour, or just get a better view of your neighborhood, everyone should have Google Earth.

Collage Maker does just what it says. It is an app that makes it easy to make photo collages. Collage Maker costs $10.