Let me add this in, forgot to say it at the time, but when I asked him, he went to the back, came back a minute or so later, and that's when he told me the only way to get bluetooth and airport in a Mac Mini was to buy one with it already installed.
I did tell the salesperson that I wanted both the airport and the bluetooth, so I don't think it was any confusion on his part thinking I only wanted one, and the upgrade only has both.
I think I'm going to take a long lunch today and stop by the store and get some real answers.
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--Ben
78GB MkIIa, Dead tuner.