Hi Folks, I have just received my EXTECH EX623. It does not measure ESR, but it has an amazing number of features. AC and DC clamp meter, it has all the features of my Fluke, so the Fluke can stay on the bench. It also has IR thermometer with laser pointer, thermocouples (two included), frequency counter, capacitance measurement, and display illumination. It's not a Fluke but I think it was a pretty good deal for $150 Canadian!
I may eventually look for a dedicated capacitance tester with ESR. Regarding Electrolytics, does the ESR ever become an issue without affecting the capacitance measurement?