If I told my then colleagues at Engineering school I would have a multitasking, UNIX-based, RISC machine with 64 megs of RAM and 32 gigabytes of storage and a fast, full-time, connection to the internet in my back pocket I would be locked up in a loony bin. If I told them I would use it to listen to music, I would end up burned for witchcraft.
Even my humble netbook is a good couple hundred times more powerful than the my Apple II. I am quite sure it can accommodate NetBeans and Eclipse quite comfortably, apart from the screen real-estate limitations.
PyDev is truly impressive. For small tasks I prefer Spyder from http://code.google.com/p/spyderlib/ though. It's truly light weight and easy to use for small tasks.
Thanks for the info you guys, I didn't know this. At work I generally have 1-3 large workspaces open in the "Java Enterprise" version of Eclipse, hence my warped perspective, maybe...
Have you tried Yoxos Eclipse[1] flavor? You can build your own distribution from scratch and only include the packages you need. You can even save your choices and continue modifying them next time you login. I have a very pleasant experience using it and my builds are usually around 100-200 MB.