Dope thread, awesome shirts so far.
I just finished building this press using these plans: http://blog.craftzine.com/archive/2008/07/free_plans_for_a_4color_silksc.html
It honestly cost me about $200 and it is capable (apparently) of doing 4 color prints (although I have not tried).
The video you posted earlier Hayabusa helped me a ton and is a great guide for anyone interested in silk screening.
BTW a cheap scope coater that works pretty damn good is a piece of aluminum angle iron, cut to fit, then you just tape up the sides so the emulsion doesn't get everywhere (even though it will anyway).
Shit like this, only aluminum:
I'd post some of my own prints but i don't own a camera