I notied the ST2320L as well, just before I picked up an SR2320L. The documented specifications are identical, but then again, it's an undocumented feature that the SR is Amiga-compatible.
Supplies of the SR seem to have dried up in the past few weeks. As of 9:15 EDT this morning, the Best Buy at 401 Park Dr. in Boston, MA 02215 has an SR in stock (at an obscene price) for in-store pickup...
I think there was also a 24-inch model mentioned in the thread here about the SR2320L. I think I found it for sale at a few places online but it cost more than I was willing to pay.
EDIT: I just did a quick search, and it looks like you can still get an SR shipped to a Best Buy in the Portland area, just not shipped to your house.
