Spanish Cedar

Rockler sells it and you can get it on Ebay as well. There are a few other woodworking suppliers also.

http://www.thewoodbox.com/exoticwoods/spanish-cedar.htm
http://www.woodworkerssource.net/Mercha ... ct_Count=1
http://www.rockler.com/search_results.c ... okietest=1

Most wood bought through a supplier like these is cured. However any wood I use to build with I always let sit in the shop for a few weeks to even out the moisture level. If your just lining a cooladoor I do not think it will be a problem.

I used ebay when I bought mine. It was kiln dried but in rough dimensions. If you want dimensioned lumber, I'd say Rockler or Woodcraft is your best bet. Be careful not to get veneer as some sites aren't very clear as to what they're selling.

You don't really need to line a coolador, boxes are enough. Though I do understand how intoxicating that smell is and how nice it is to have it.

Another source is Lee Valley Tools. They list 3" x 24" pieces in 1/8 through 3/4 inch widths.

I just bought some more off of ebay. I bought about 15 board feet of 4/4 stock for $78 plus shipping. There were lots with less width for less. I've bought from this seller before with good success. PM me if you'd like his name.