I will vote for animal plastics as well. I have 3 of their racks and love them. I have 2 regular racks that will hold either 1 32qt or 2 15qt tubs per shelf. I also have one of their economy racks. I have it set up in between my 2 other racks to keep the sides closed in more and it hold temps great. If you keep your room fairly cool I would say go with a regular AP.
As mentioned above it does take a LONG time to get them..(8 weeks in some cases)
RBI racks are nice too but they are a little more flimsey and the material is thinner than AP. The upside is they are competitively priced and they come fully assembled with tubs and all!
Either way you cant go wrong.
Let us know what you get