I do love that Zlyliss pizza cutter. I bought one just like it after seeing Alton have one on the show. It's a very handly little thing. I've used to cut puff pastry and other dough
My list would be:
Knifes -- Gotta have those without a doubt.
Cast iron skillet -- I cook so many things in it I would be lost without it.
Digital scale -- Because I make a lot recipes from Alton, there's a good amount of weighing involved. I was thinking yesterday evening when making dinner how much of a workout that little thing gets!
Themometer -- I'm surprised Alton didn't list this. You gotta know when the hunk o' beast is perfectly cooked.
Timer -- Another thing I'm surprised Alton didn't mention. I have two that I use on a regular basis. One is part of my probe themometer and the other is a twist type that looks very retro. I use them almost everytime I cook and when I brew tea.