My new iMac just arrived! What should I install?

[fivepoint]

I just received my new iMac in the mail, and I am very excited! I've already installed Handbrake, iMovie Hd '06, and iStat Pro.

What is next on my list of -must have- applications to install?

 

[akm3]

Firefox?

VLC
Flip4Mac
Mactheripper?

Those were great for me.

 

[johto]

perian

 

[littlewaywelt]

handbrake