If you are fortunate enough to find yourself in England between now and the 21st of February, 2010, you positively must go pay the Museum of the History of Science in Oxford a visit. They currently have on display the first museum exhibition of Steampunk art:
Click on the MotHoS Steampunk banner for more information on the exhibit. Plus, admission is free!
Quite frankly, if I wasn’t making pennies an hour, I’d hike my skirts up and go there myself. If you went, you positively must tell me how it was.