Whitney just got a new MacBook Pro and is wondering what cool stuff I recommend. Being an avid Mac user, I offer the following list. Items marked with a ($) are not free.

AdiumX - nice multi-protocol chat
Audacity - great editor for audio
Audio Hijack Pro ($) - record Skype calls and any system audio
BBEdit ($) - best damn text editor there is
Camino - a better browser than Safari
Chax - iChat extender
Conversation - decent IRC client if you use IRC
CoRD - open source remote desktop client if you use MS Terminal Services
Cyberduck - great FTP/SFTP client
Disk Inventory X - find out where your free disk space went
ecto ($) - do a lot of blogging on lots of blogs? Ecto is a great client.
Firefox and Flock - for testing and extensions
gDisk - turn your GMail account into a disk
Gizmo Project - competitor to Skype
Gleam - free Flickr uploader for photos
Google Earth - the world
Google Notifier - menubar GMail and GCal notifications
Google Sketchup - 3D software if you like that kind of thing
Growl - system-wide notifications
Handbrake - DVD ripper par excellence
iClip ($) - multi-clipboard tool
iStumbler - find WiFi access points on the go
Levelator - for levelled audio
mAC3Dec - rip any media file with audio into AIFF for use in Garageband
MacGPG - encryption
NeoOffice - OpenOffice port
QuickSpace X - fast MySpace links to common profile tools
Second Life - for the world that isn’t your world
Senuti - pull stuff off your iPod
Skype - VoIP client
Snapz Pro X ($) - screen grabber that can also make screencasts
Spanning Sync - sync your Google Calendar to iCal and back
Spyder - MySpace friend manager
Stuffit Expander - slices, dices, julienne fries, and decompresses
Tea Timer - desktop countdown clock
Transmission - Lean and mean BitTorrent client - can download Rocketboom HD in seconds
VisualHub ($) - convert just about anything to anything in video
VLC - best video player ever
XCast - kind of neat podcast manager
XCode - the 900 lb. gorilla of development tools

What tools on the Mac do you use every day that you can’t live with? Post them here!