Appreciate your note -- I too love the simplicity of this piece, and also find that I can read the time with good precision given the railroad track scale and finely pointed hand.
As for CS4, I upgraded from CS3 primarily to get full PS functionality for my new Leica D-Lux 4. A bit annoying how Adobe doesn't make prior versions compatible with new cameras as they come out! I saw recently that it won't be long until CS5 is introduced -- I hope that there aren't any super new features in it that I just "have to" have!
Thanks again for the kind words.
Best,
Gary G