I just joined this site to buy discounted mac software. How do I do that?
Well, you're a bit late (or a bit too early, if things go well).
MacHeist has run three major bundles in the past (plus a couple smaller bundles) but those are over. Right now they have an iPhone app called The Heist that will get you a free copy of a game (if it's still valid) but that's about it.
Now, hopefully, MacHeist 4 is coming in the future (sometime?). What will happen is a series of puzzles and giveaways followed by the big bundle. Nobody knows when (or if!) it's going to be, though, so you'll just have to wait.
In the meantime I'd suggest MacZOT or MUPromo for deals, as well as the other bundles being offered currently.
NovaStorm Software || @NovaStormSW || @jfm429 || Dropbox + Extra Storage
"I invented the term Object-Oriented, and I can tell you I did not have C++ in mind."
- Alan Kay, inventor of Object-Oriented programming