Well done zf and cbg! Well deserved recognition for great shots.
I tried to download GIMP too, but got a bit confused with the instructions for putting it on a Mac - anyone done it? So far I've just been using iPhoto and until yesterday all I'd done was crop, but I really want to learn more about editing through doing this so I started to play around yesterday and was quite pleased with the result. I had Photoshop on my pc but that broke and I keep debating whether to just pay for the software on the Mac. I should really try GIMP first if it's free though. I think I saw picnik on AppStore for Mac too for $100 or so.