What the heck is a Warped Bottle Brush Burl? I dunno but Lee Sky from Florida turns some incredible vases from them. He was nice enough to send me a couple to play with and to WARP!
Lee Sky: http://www.leeskywoodart.com
You can find instructional DVDs, Tim’s Tools and the Elbo Hollowing Tool on the Woodturning with Tim website: http://www.woodturningwithtim.com
Robust Lathes: http://www.turnrobust.com/
I am a Robust dealer (which adds nothing to your costs) and I am more than happy to help you pick out and configure your new lathe.
Thompson Lathe Tools: http://thompsonlathetools.com/
These are the finest, long lasting turning tools on the market. I have used them since our first shows on PBS.
Warped Bottle Brush Burl