Here's a pic of the racks. They're pre-holed 16 inch aluminum pizza pans @$5 a pop from my restaurant supply house. Last night I used one to cook a meatloaf (I'll post the results of that separately). I'll use them for nuts, shrimp, calamari, cheese---the possibilities are endless.
Here's where I got them:
http://www.boxernw.com/cgi-bin/htmlos.cgi/0128.2.14796964667