I see this is currently a popular topic so here is a list of tutorials etc that may be helpful.

I will leave as a sticky so easy to access. if you have more - feel free to add.

http://www.vanilladays.com/hdr-guide/

http://www.cambridgeincolour.com/tut...amic-range.htm

http://backingwinds.blogspot.com/200...dr-images.html

http://tutorialblog.org/hdr-tutorials-roundup/

http://www.photoshopsupport.com/phot...nge/index.html

http://www.popphoto.com/howto/3038/h...ge-images.html

http://hdr101.com/

http://www.luminous-landscape.com/tutorials/hdr.shtml

http://www.nill.cz/index.php?set=tu1