The networking/computer repair teacher at my school was generous enough to give me a full tower with a motherboard, hard drive and everything. I think I'm going to keep the junk operating system in it until I'm sure my stuff will be safe from condensation. It has like a Pentium 1 and has 16mb of RAM and 850mb of memory, but it was free and can serve as my guinea pig setup. I want to replace it with my dell's insides when I'm sure it's safe.
This is the tower I'm working with, nice and tall with enough room on the bottom to hold a couple 6packs.
As you can see, plenty of empty space. I am currently moving everything to the top half of the tower above the bar. The entire bottom half will be dedicated to the fridge.
Here is how I plan on making space for the motherboard, by putting both the floppy and CD drives sideways and placing the the motherboard in the empty space to the left. I will cut out a slot in the metal on the bottom of the tray for the board to slide in. As soon as I get it and placed I will post an update.