I've been mucking about with GIMP 2 this evening, trying to make myself a new banner. I've come up with about five different things, four of which stink and one of which I'm cautiously pleased with, so I've bunged it up over the shop. Unfortunately it's 920 pixels wide and only 100 high, so it has to be small here to avoid buggering up the page layout - click on the image for full size.
The photo is one I took a few years ago in Cornwall, of the dovecotes at the Lost Gardens of Heligan. I love it there.