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Oh, and welcome :)

Best software ... bar none over here ;-)

Ok... what I recommend:

ALL THE BUNDLED APPLE APPS. Safari, mail, itunes, iphoto, photo booth, garage band, etc etc etc

Aperture (Photo Management)
Adium (IM)
Memoires (Journal)
3D Weather Globe (very cool weather condition)
Celestia (Google Earth for the Solar System)
Google Earth
iWork (Pages, Keynote, Numbers is sooo much better than Office it's not funny)
Skype
BBEdit (if you do any html editing)
Comic Life (is cool if you have kids, etc)
Graphic Converter
For the Internet (Newsgroups, etc)...
MacPar deLuxe & UnRarX (For Newsgroup files)
Transmit (FTP Client)
Unison (Greatest News Reader on the Planet)
Pixelmator
Netflix Freak (if you have a netflix account)
Vmware Fusion (for Windows)
HandBrake
VLC / Flip 4 Mac / DivX Player
Pacifist (for getting into packages)
Audio Hijack Pro & iToner (for making your own ringtones from iTunes)
Stuffit Expander
Voice Candy (sooo fun)
Weather Dock (Best weather app)
AppFresh
AppZapper
CandyBar
Lingon
Mactracker
Onyx
smcFanControl
TrimTheFat


To start off with :)
 
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