I bought an i1 Display LT meter. About as cheap as you can go and still get decent results. I am using the free HFCR software. I found the meter basically on "close-out" from a photography place online and got one of their last couple meters for $110 shipped (new). The next closest I saw was on Amazon for $160. The "current model" is an i1 Display 3 which runs around the $200 mark. I am sure that it is pretty nice, but considering I can really only tune a few (key) settings on my projector, I was going for the lowest cost option.

So far, I really got bogged down and haven't done the calibration yet. I used went back and tuned the black level and white level, and then I got the "before" captures using the correct, full frame screens and found that the luminance was closer to being correct. Problem now is that I have inky blacks and bright whites, but I am missing a lot of detail which will come when I tune the grayscale and gamma. With vacation #2 coming up tomorrow, it will be a bit before I am home to get them done.
2-M60s, VP180, 8-M3s, SVS 20-39PCi, DIY Sub, 8-Shakers, JVC RS45, Anthem MRX-1120