Zach ( http://thesystemis.com ), Evan ( http://ni9e.com ) and I taught a workshop on openFrameworks at Eyebeam the other week.

OpenFrameworks is a free, cross platform, openGL based api of sorts for doing cool creative stuff in c++. The workshop was like two semmesters of classes crammed into 3 days.

Day 1 was a general intro to c++ with examples.
Day 2 was animation techniques and examples.
Day 3 was computer vision with and without openCV.

The code for all the classes is up here:
http://www.ninjagarden.com/of/ofEyebeamWorkshop.zip

This was all the mac projects as that was what people were using - though it would work fine on a PC too. Oh you need xcode 2.2 or above!!!