To clarify, by
@unknownuser said:
realistic drafting
, are you asking for rendering plugins? There are a number of threads discussing all the various rendering plugins. You could start with this one:
http://forums.sketchucation.com/viewtopic.php?f=81&t=3220
on which I posted a spreadsheet (that needs updating and more information) to start to compare features. Here is the most recent version:
http://forums.sketchucation.com/viewtopic.php?f=81&t=3220&start=45#p332219
Hope that helps a little.