Design, maintenance tips for compressed air distribution systems?

Does anyone know of any good books or on-line references for this kind of thing? Preferably sucinct! The only decent book I have managed to find is outside my price bracket @ $125!.

- Compressor selection / sizing
- Pipe diameters / routing
- Position of, necessity for, secondary vessels
- Sensible preventative maintenace activities
- Troubleshooting, finding leaks!

cheers,

Graham Newell
Manufacturing Manager
Owlstone Nanotech, Cambridge