Shooter -
If you are looking at the new route, I picked up a 160 or so Qt. Igloo Cooler with the slots for shelves at Costco not too long ago, it was $70 I think. They stock them for the summer season, when I was there a week ago, they still had them up here.
I have also read on here that people buy spanish cedar at Woodcraft stores, there is one of those up here as well. Looks like there is one of those in L'ville at 1846 S Hurstbourne Pkwy, might be worth swinging by there. I think you will pay a little more, maybe others on here can comment, I know spanish cedar there was not cheap.