Holy crap, this is so much fun!
Just slapped my fretless into Open E tuning (which I've only ever really tried once before, and that was for fingerpicking, which didn't work out too well), slipped on the slide, and spent about an hour jamming with some Allman Brothers vids on Youtube. I could really really get into this style of playing...
Here's a detailed interview with one of the modern masters...
http://www.youtube.com/watch?v=UDEjh...elated&search=
http://www.youtube.com/watch?v=CxbQf...elated&search=