Here’s what I use most often. I’d made a couple of additions, at the bottom. They are worth looking at, too.
Apimac timer * No kidding, I use it when I do laundry.
Audacity * I’m more comfortable with it than garage band.
Caffeine * It keeps your laptop from going to sleep or powering down. Perfect when you’re working at a desk or are powered up.
Cyberduck * FTP program
Firefox * Web browser.
Flickr Uploadr * It, uh…. yeah.
Gimp * Open Source Photoshop.
Google Earth * Mmmmm, satellite imagery and geospatial goodies.
Google Updater * Keeps all the Google software up to date.
Handbrake * Converts DVD’s to Xvid or Quicktime, in one step.
iChat * uses AIM and Jabber / Google Talk protocals.
iScrobbler * Works with last.fm and iTunes
iSquint * Video converter. Makes anything into Quicktime format in AppleTV or iPhone / iTouch size.
iTunes Alarm * An Alarm that plays iTunes. Versatile.
Open Office * Open source office suite
Parallels * Windows emulator. NOT FREE.
Picasa Web Albums Uploader * Bulk upload to Picasa.
Skype * Video teleconference, and phone calls out (if you pay).
Symantec AV, because the Army gives it to us free.
Time Machine. OS X back up program. I got a 250GB from the PX, 2.5″ that is powered via USB.
Toast 9. Not free. DVD / CD authoring.
Twhirl (runs on Adobe Air) * For twitter.
UnRarX * Handles all kinds of compression formats.
VLC (MUST!!!) * open course media player.
Vuze * For torrents
What’s Keeping Me * Helps ID when something is wrong.
Wireshark * But I’m trying some alternatives right now.
Updated:
TubeTV. Download flash videos (YouTube, Google Video) as Quicktime, formatted for iTunes. (Thanks, Chris)
Quicksilver. String together commands into a user-defined keyboard stroke. (Thanks, Chris)
Adium — for all your instant messaging needs. AIM, MSN, Jabber / Google Talk, Yahoo, and more. (And again, thanks, Chris)
Great list here, with links. VirtualBox is probably the best of the bunch — but then again, I paid for Parallels. And I looooove GIMP.
Also, if you’re getting into Mac, you might want to get smart on iTunes magic. I wrote about it a couple of times, and it’s all clumped here.

September 15th, 2008 at 5:52 pm
No QuickSilver?
September 16th, 2008 at 2:28 am
Oh yeah. No TubeTV?
September 16th, 2008 at 2:51 am
TubeTV ROCKS! OMG, it’s pure awesomeness.
September 16th, 2008 at 7:42 pm
I just downloaded Ecto (Mac’s version of LiveWriter) which allows me to easily write blog posts, including links, pix and other media while offline. I’m liking it so far. Certainly better than the Blogger interface. I know I know I could switch to wordpress…