I'm going with a boaphile ball room rack for my first rack system.

I'll write up a review in a few weeks when I get it, and follow it up with a 6 month review.

Until then, I'll 2x on what 2kdime said, Animal Plastics makes great products, and I use them for their cages. I have not tried their racks, but I'm sure they're every bit as well made.