KeyQuencer Lite for Mac

From Binarysoft:

KeyQuencer Lite is the most powerful, easy-to-use, shareware, macro utility available. You can use it to create shortcuts, or "macros", that you can execute with a keystroke. These macros can do almost anything, like connect to the Internet, get your email, change your extension sets, log on to an AOL chat room, or quit all running programs. Comes with hundreds of ready-to-use macros.