I need a free IDE for somewhat slow computers that highschool students can use to learn java. I’ld like features like code completion, automatic imports, real time error checking, quick javadoc refrences, and 1.5 support: all of which I see in eclipse. The problem is that eclipse can be incretibly slow on these computers. There are lots of fancy features that students don’t need to learn java, so things like CVS support or native ant support I could do without.
What free IDEs to you recommend for slow computers?
Are there tweaks I can use to eclipse to make it run faster, at the sacrafice of a few features?