This seems to be the right connector.
My question was answered elsewhere with the following:
the 24 + 5 on the DVI end means there are 24 main pins and then 4 pins surrounding a big 5th pin ( the + 5) basically what that is is the big blade pin in the center of the 4 pins will do Digital signal while the 4 outer pins take care of analog signal. the 15 (24+5 to 15) is the VGA, 15 pins in a VGA connector.
So I went ahead and ordered it. Just thought I'd post this here to save any unnecessary response -- and information for others.
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