AIM (AOL Instant Messenger), AppleWorks 6, and iTunes are three programs that I can think of off the top of my head. All I assume are Carbon instead of Cocoa (at least AW is)... maybe that has something to do with it (e.g. Cocoa apps can take advantage of services while Carbon apps can't... maybe something similar in active window resizing?).
Of course, the movement behavior is different. In all three programs, the window as a whole moves, not just the outline.
And, of course, this would fail to explain why the Finder actively resizes windows, 'cause I believe it's carbonized.
-jay