If I am going to be chroma keying with an HDV camera (HV20), is Black MAgic Intensity the way to go? I know I will have to record to a laptop, but I had heard that HDV was worse than DV for artifacting with chromakeying. Is this true?

Here's the link to my previous post of some green screen testing I did with the HV20 and Sony Vegas7.

http://www.dvinfo.net/conf/showthread.php?t=97139

Is that with the Black Magic Intensity? I do appreciate the effort, but the chroma-keying for the HV20 isn't really that good - I am just wondering if it is because it is compressed footage or if the chromakeying with the HDMI is better?

No, that's not with the BMI, it's just the camera and Vegas only.