For a good off-the-shelf developer you can't go wrong with pyrocat. Photograpers Formulary sells it and it really is wonderful stuff. Get their version mixed with glycol, as shelf life is much better than the water mixed stuff. ABC pyro is a great developer, but it is pretty picky with the mixture and use. Pyrocat does what you need, little or no general stain, great contrast potential and ease of use. It is versatile, cheap, easy and very forgiving, unlike ABC or PMK.

If you need lots of contrast for alternative process, take a look at Efke 25, it has more than you will need. Efke 100 will do most of it, unless you need huge amounts of contrast potential in a very flat scene. tim