http://wsoinsiders.com/go/domainator/

This software was coded on Windows for all Windows platforms, unfortunately it will not be compatible with Mac systems. However if you have bootcamp on your Mac(all should have it), you will be able to run it on Windows bootcamp.

Scans 67 Different Top Level Domains

Scans Document keywords with prefixes and suffixes to maximize output!

Able to scan thousands of domains per second!

Allows BRUTE FORCE 3 – 8 character domain searches… creates every possible scenario

Easily export your results or buy with one click!

http://wsoinsiders.com/go/domainator/