I got my copy of Snow Leopard* this afternoon and installed it immediately. I haven’t noticed a huge difference except one that makes it all worthwhile and if you’re a photo bug, you might like as well: when in icon view in the finder you can now resize your thumbnails up to 512 x 512 which is wonderful beyond belief. Of course it helps having a 30-inch monitor.
* It’s the new operating system for Mac just in case you haven’t heard… There might be two of you and now you know. My good deed for the day is done.