Automatic allows you to set up subscriptions for virtually any content linked in RSS feeds: podcasts, videocasts, torrentcasts... Rule of thumb: if it ends in '-cast', you can get it with Automatic.
Menu structure & terminology closely matches Photoshop's. Many Photoshop tutorials can be followed in GIMPshop unchanged, & most others are adaptable with minimal effort.
iStumbler is the leading wireless discovery tool for Mac OS X, providing plugins for finding AirPort networks, Bluetooth devices and Bonjour services with your Mac.