how many do this? are there any good tutorials on setting up one's own "lab?" i read on largeformatphotography that sensitization is a big problem.
I'm doing 220 and 35mm E-6 using daylight roll tanks. The Kodak "5 liter" kit produces great results, at significantly less expense than commercial labs.
You don't really need a 'lab,' just a bunch of beakers and a large tray full of moving, temperature controlled water. You can go with a dedicated, electronically controlled thermostat driven system, or kludge together something using a fountain pump, manually adding hot water to the bath as necessary.
As suggested, APUG will deliver plenty of specific advice (and opinions!).