Every test is in ’source control’ currently in CVS. Every word about testing is version control. All in ‘text source files’ – NO Binaries, binaries are not greppable.
My front end for tests is Jedit editor. I can search for phrases and strings in directories.
All tests presented as Ruby classes and I use Watir for execution.
Hudson CI for regression testing running with ci_reporter.

All of this has to be simple and fast.