The idea of this thread is to know what software are you using. Questions and comments are welcomed.

Rar Expander 0.8.5 beta. For rar/unrar files.
Firefox. I never use Safari. Do you use it?
LeafChat. For IRC.
iPhoto. Another good alternative for viewing/managing photos?.
VLC. Useful for viewing movies and DVD's (region free).
Perian 1.0. Extended support for Quicktime.
Photoshop CS3. The Gimp would be a nice alternative.
AutoPano Pro 1.4. For making panoramas. Outstanding technology.
PhotoMatix Pro 3.0. For making HDR images.
M$ Office 2004 (Word, Excel and PowerPoint)
NeoOffice
MameTunes + SDLMame. I love retrogames.
TomTom manager.
VMWare Fusion
QuickSilver. A great launcher.
LiteIcon. For replacing icons.
Onyx. For optimizing system.
MediaFork. For ripping DVD and converting them to Divx.
Gmail Notifier.

You can find more free software here: http://www.opensourcemac.org/

Regards,
Sergio.

My main Dock programs are as such:

Final cut Pro 5
Adobe CS3 Design suite (Photoshop,Dreamweaver,Flash,Illustrator)
Roxio Toast 8 cd/dvd Burner Program - Like Nero
MacTheRipper - for ripping dvds
Maya 2008
Adium - like iChat
Azureus - BitTorrent Downloader
Safari
itunes
Processing - Programing for artists using a java based code. Really cool - http://processing.org/
Calculator
Yasu - OSX system cleaner - erases caches, repairs prebindings and permissions and such.
Serial Reader/Serial Box - All the latest serials for most every Mac App.

And thats it for now, its for the kids :)

Also http://www.versiontracker.com/macosx/ has a ton of Mac OSX programs/utilities too

iphoto
iweb
Adium
Azureus (Transmission is very slow)
Safari
itunes
rar expander
MS Entourage (2008 beta)
Ms Powerpoint (2008 beta)

@roisoft: How come that Transmission is slow for you? :)
I use mainly BitRocket (awesome), but also Transmission, and they both work fine!

yes man, transmission is very very slow for me, azureus is more faster than the other bittorrent clients, belive me!!

Finder
FireFox
Ventrilo
iChat
aMSN
iTunes
Toast Titanium
Transmission
VLC
Final Cut Pro
SoundTrack Pro
LiveType
Motion
Pages
Numbers
Keynote
Photoshop CS3
Lightroom
Terminal
System Preferances

Azureus takes up too many resources. Transmission is stable, though, a bit dull no features. If only there was a uTorrent port for OSX =(

I've tried Toast Titanium 8.0.3 and it doesn't work. No crash, it simply doesn't open up and doesn't respond.
What version are you using guys?.

Sergiales, did you apply cpuids ?

Sergiales, that's because you very probably don't have QE/CI Support.

I experienced the same. It was solved when I installed proper graphic kexts.

Sergiales, Mine also crashes everytime unless i force it to run using Roseta and I have CI/QE enabled,
click on Toast icon and go to get info, then check the run using Roseta icon.
That worked for me.