Mac Mini Media Center: Growl's Email Notification
This is a simple but effective time-saver if you use your Mini for the downloadin’ and find yourself checking in frequently to see if your downloads are complete yet.
The notifier preference pane Growl can be set up to send an email instead of showing a little notifier box on your screen. Amongst other things, BitTorrent client Transmission and also Hazel work with Growl, so you can get email updates letting you know when files have finished downloading, and confirming they have been processed by Hazel.