+1
It's probably cheaper in the long run for you to just buy the superhero figures by themselves, and then buy the required parts as separate items, all from bricklink.com.
As for building techniques, you may be interested in:
http://joncraton.org/media/files/Uno...iquesGuide.pdf
and:
http://www.eurobricks.com/forum/inde...howtopic=21936
The first link may not be very useful though, because you would need to find a context to try the techniques out in. But, you probably have lots of ideas already.![]()