Anyone wanting to try a Megasquirt w/o soldering a kit together can get completely assembled units at:
RS Autosport, which is a one-man shop in Sacramento, CA.
and
From Robert Pittman, rlpittman@sbcglobal.net, in TX.
Prices are in the $200-250 range for a complete assembled unit, which is about $50-100 more than you'd pay for a kit.
I have had no business dealings with either of these guys. I've chattup up the RS Autosport guy on the
Megasquirt Forums, which is an essential place to go if you want to know more about this stuff.