Try Powertoys For Windows XP, free from MS. It will give you 4 different desktops to work on. Click a button and the whole screen zooms down to 4 windows. Click on the window you want to switch to and it zooms up to full screen.
It doesn't have Java installed and I'm glad, Java has caused many crashes. Sun is using the Sep 11 tragedy to promote their software for a national Java ID card. Just say NO to Java.
You are mistaken. It is Oracle that has taken the lead on the National ID card, which the congress and Prez have basically pooh poohed. It won't happen.
As for Java, it's great - in the proper environment.