Leon - is there a source in the UK for this stuff, or is it best to order with PF?
Do you mean the developers i suggested to Susan? If so, with the exception of Pyrocat HD, you can buy them from
www.monochromephotography.com. AFAIK, there arent any UK sources for Pyrocat HD, so I mix it myself - it's very easy and much cheaper than the other ones I mentioned.
Rogerr - i hear what you're saying about mixing chemicals vs film/ paper production, but if you've got a particular favourite (like aculux for example) and production is then stopped, with no formula published, it can be very frustrating, and many people cant be botherd with the hassle of diy chemistry.