Word of warning to y'all (once again!): GET A CONTACTOR!!!!
The C.A.P. timer will support two pumps at most. I've been running three for a bit over a week now (was waiting until payday to get a contactor... bad move) and had a bit of a tragedy this morning. When I woke up and checked on the plants, they were all wilted over and drying out. Of course the timer craps out when the HPS is on! I have no idea how long they were without water for... I remember hearing it go on just as I was drifting off to sleep, so at most they were without water for 7 hours or so... not very long, but plenty long enough when under an HPS.
The babies (clones and veg plants) are OK and will survive. The girls that are a week into flower I'm not so sure about... the bottom parts of the plant have perked up, the top is still very wilted. We'll see. Worst-case scenario they don't make it and I'm set back three weeks. It could be much worse... lesson learned.
I checked out my timer without a load attached and it still works fine, so there's some cash saved. I hooked it up to a 50A contactor bought from a local pool/spa supply place (I know 50A is overkill, even for 5 pumps, but I do not want to worry about this happening again!) and it has been working perfectly since.
Also, congrats on the High Times cover Stink!