One new feature in 3.2 is the nice quick filter in the preferences dialog. This feature is very handy. Especially if you have a view with many elements and you are tired of collapsing and expanding them all again just to locate an element.
Actually, the implementation is very generic. I was able to created this little plug-in in less than 10 minutes. It adds a new Navigator view to Eclipse but this time with a quick filter.
Give it a try. But be aware that this comes without any warranty and will have a noticable performance impact on large resource trees with many project and files.