I want to point you all to Mind Manager and the fact that it is now available for the Mac. I was always jealous of others I have seen using it and am super happy to see it on OSX now.
I downloaded it a couple of days ago and have been using it alot. It is $229 for the single person license. There is a good chance I will be forking that cash over.
[Hat Tip to Bren at Slacker Manager]