1 RAW then photomatix to do the HDR, then Lucisart's sculpture plugin to enchance them then a bnw toning settings in Virtual Photographer.
The shot for the old smoke house was in multiple exposures though, 3 in exact. That's before I found out that photomatix can do HDR with RAW files too.

There's once i was in ikano there's a popular sale at the ground floor. i saw a book on various ways of lighting for certain effect complete with guideline and pictorial support. didnt bring enough money that time its around 40+

cant find it now haha...