the effects for the first 2 spider man films were amazing. and who did the effects? the one and only John Dykstra who did the effects for star wars in 77, and was summarily fired by lucas before empire or jedi. The new motion control that was able to make it look like spider man could climb and fly on his webs came from him, new digital camera and cgi work.

Anyone who want's to read about the making of either film pick up the books by Mark Cotta Vaz, who also wrote the best of the lucasfilm archives.