NodeBox was initially a Processing rip-off, but with Python instead of Java. It was a little odd, because for some reason it did a lot less than Processing but was about as hard.
It still does less than Processing, but the new version of NodeBox is now a rip-off of VVVV, which is kind of nice, and it's cross-platform, which is nicer.
As with VVVV and Quartz Composer, you connect items together in a kind of flowchart, thus avoiding all that tedious coding.
It still can't touch Quartz Composer, and the interface is quirky, but the above plan was enough to whip up an animation like this in short order:
Crucial tutorials here and here.
Quick and dirty Thundra suggestion:
Hmm, larger file, but way prettier: