I don't have much, but I'm proud of my palette collection. It's pretty tight, well-picked, and serves all my needs. If I were to get one - or two - more palettes though, I would like to have the Urban Decay Ammo Palette and my very own customized 15-pan MAC palette. That would be sweet!
As you can see, my collection is dominated by my Dollface palettes. I know you think I sound like a broken record but this stuff is seriously awesome. They're investments I never once regretted. Oh, but speaking of regrets. My 15-color neutral shimmer palette fell face-down and broke yesterday. Sad face.
So, what do you have in your own collection? I'm sure they're nice!