2 jelly roll pans
1 loaf pan
1 9-inch tart pan or pie plate
2 9-inch round cake pans
13-by-9-inch glass or ceramic casserole
I'd almost consider these to be more part of the pantry than equipment. You'll need lots, and you'll always run out just when you need them most. Buy backups.
Sealable plastic storage bags in various sizes (especially 1 gallon)