Here is another shot from the Ballunar Liftoff Festival at NASA Johnson Space Center this past Saturday. This shot was taken as the balloons were being readied for the "balloon glow" a little later in the evening.
Title: "Balloon Glow Prep"

Shot data: 1/50s f/2.8 at 42.0mm iso1250
Camera / Lens: Canon 40D / Canon 17-55mm f/2.8 zoom
Post-processing: Adobe Camera Raw > Photoshop CS3 > Topaz Adjust plugin