Ben - it's my favorite "budget" lens... ever. I passed my copy down to my son who's now a Fine Arts major with an emphasis on, what else... photography. I gave it to him when I picked up an F*300/4.5 last year. He's been using it shooting for the college yearbook and school newspaper and loves it.
When I recently told him that I was considering getting the DA*300/4 and letting him have the F*300, his only response was... "Why would I want to get rid of the Tamron?"
Here's a few shots from "our" collection
It used to just shoot birds on a K10d...
Now it covers campus events attached to a K100D...
One can only imagine the images that Ben will produce with this lens ...
Oh, and thanks for posting a link to your processing methods... very cool!