Without further ado, here the are: categorized, but in no particular order.
System Tools
- Launchy - Open applications, documents, and websites by typing the name, or a portion of it... and more! Link
- StrokeIt - Global mouse gestures that can execute hotkeys or system commands. Link
- Samurize - Offers a wide variety of desktop overlays. I use it to display my current TODO.txt list on my desktop. I wrote a tutorial on how to do this. Link
- Synergy - use a keyboard and mouse over a network. Link
- Bulk Rename Utility - Quickly rename files in a given folder using a wide variety of techniques, including regular expressions. Link
- Avast Anti-Virus - Excellent free anti-virus software. Link
- Alcohol 52% - Create and mount CD images on virtual CD/DVD drives. Link
- Visual Subset - Create virtual drives of your commonly used folders. Link
Customization
- Folder Marker - Changes individual folder icons, for both aesthetics and easy locating. Link
- Taskbar Shuffle - Drag programs around on the taskbar, middle click them to close (just like tabs in Firefox). Link
- Send to Toys - Customize the choices in the Send-To portion of the context menu (including sending the filename to the clipboard). Link
Media
- Tigo Tago - Modify ID3 tags for MP3s in a spreadsheet-like environment. Link
- Virtual VCR - Excellent program for video input. Link
- Media Player Classic - A great lightweight video/dvd player. Link
- Quicktime Alternative - Installs codecs to play MOV files in Media Player Classic. Link
- FlashMute - Mute all sounds from your browser. Link
Editing
- MWSnap - Screenshot/Color Grabber program with global hotkeys and lots of extra features (adding mouse cursors or effects to screen captures). Link
- Virtual Dub - Linear video editing, converting application. Link
- Audacity - Audio editing program with lots of features. Link
Communications
- Zoomit - Sysinternal's Handy demonstration/presentation software, zoom in on the screen, doodle on it, or overlay with a countdown timer. Link
- Google Talk - my new favorite way to instant message, with a neat, clean UI. Link
- Firefox - the crown jewel of the open source community (kinda depressing really), its strength is in the extensions: check out my list. Link
- RSSOwl - powerful standalone RSS reader. Link
- Foxit Reader - Excellent replacement for Adobe Reader, especially since it opens almost instantly. Link
- doPDF - Free PDF writer/converter. Link
-Adium
-Camino
-NeoOffice
-Growl
-Google Notifier
-Gmail+Growl
-OSXplanet
-And of course there's iTunes, Automator, Exposé, Dashboard, Front Row, Preview, and all of the other applications which are included with Mac OS X
If you're looking for better and easier, why not just go for the real deal? ; )