Strange Attractors is a collection of work from some very talented Australian artists/animators. You can view animations, read articles, and get some tips. By far, my favorite animation is Buckethead. It is sweet, a little sad at times, and altogether delightful. A must see.
Of a similar style to Buckethead, is a work in progress called Rustboy. Here you'll find concept art, storyboards, and a collection of movie clips including tests, scenes and the title sequence.
All I can say is, "wow."