AIDA32 also has a monitor utility in its Plugins menu. It doesn't have that convergence test that the Monitorsdirect site has.
It'd be nice if that utility was easily downloadable.
Just tried that NTest thing, and it looks like it has a good battery of tests. More than AIDA32, for sure. I think I've found a new tester.
Good link, anim8r.
And coincidentally, the monitors for my two main PC's are Nokia's.