new iMac - ideas on awesome software?

Getting a new iMac. Anyone like to share there must have software for a new Mac? More utilitarian software rather than big apps (CS, etc).

Currently, I'm thinking:
Dropbox (obv)
SuperDuper
Hex colorer picker
Skype
Unarchiver
1Password

I am sure there are other posts out there about this.. but software is always changing.. :)

Thanks y'all