Hey Chris, I bought cheap digital multi meter ($12) and you really get what you pay for... it wouldn't zero out on the ohms and wouldn't even read them half the time. I have a little meter at the shop that has the needle swing type readout that was more accurate than the digital and it only cost $12 but was so small that I had to wear my cheaters just to see the needle
I picked up a larger version of the needle swing arm version Saturday to do all my testing of the FI harness and it really made a difference, especially being able to see all the numbers. It was only $30. I think it was made by BG Electronics (18 functions). Has ohms settings from x1 to x200 or something like that, volts, ac/dc and has a battery test setting. I also picked up some really small aligator clips. Had an extra pair of elec. probes to which I affixed them. They came in really handy when testing the ECU and the ends of the harness. Hope this helps.
bruce