I don't know how much bandwidth you have for this site, but it might be nice to post the 4 GRE exams. Alternatively, you can point people to http://groups.yahoo.com/group/physicsgre/ but then they would have to join the group and get approval.
The only con I see is that you may have so many people downloading tests that your bandwidth gets used up too quickly.
NuclearGirl
Is it possible to post all 4 tests?
I guess some people felt the same way you did with this thread and this thread.