Well, I don't care much about upscaling it. This is just for a short YouTube vid.
What I ended up doing is cropping 55 pixels from the top and bottom of the image, changing the size of the final encoded vid from 720x480 to 720x370, and selected 9/16 in the Expert option under the video tab.
The result is it's pretty much bar-less, though there still is a tiny bit on the top and bottom of the image, and there is some on the sides as well (which I didn't bother trying to remove).
For any future projects, would anyone be able to come up with a list of the number of pixels to crop from the top of bottom of videos of various different aspect ratios in order to minimize the "black bars" in the resulting MPEG file? Such as "For 16:9 television video, crop off this many", "For 1.85:1, crop off this many", etc.?
If you want to see my little experiment, here it is: