I thought I remembered a demo on youtube, and I was able to find a couple (they're actually for the T146SMD - not sure what the difference is in the models). Here are the links:
YouTube - EASTMAN T146SMD?? YouTube - Autumn Leaves by Dan Johnson
And here's one that has both the T146 and the El Rey, from Foulds:
http://www.youtube.com/watch?v=DoPpv4gaahA
I haven't played the T146 but I did demo the T145 at a local shop (15" lower bout rather than 16"). I thought it had an excellent amplified tone and a passable acoustic tone, considering it was a small thinline. I actually ended up buying an Eastman El Rey 1... if you're interested in a small, thin jazz guitar, and don't mind the "unconventional" design, also worth a look. If you check on youtube, jhalemusic has a few demo videos about the El Rey.
For a little more money, there's also the Benedetto Bambino (it might not be in your price range unless you're willing to buy used). Like the El Rey, it's an unconventional design with no f-holes, but it plays beautifully. jhalemusic has a great demo on youtube.