Some Suggested Imaging Tools and Resources:

• Automatic TerraServer Downloads with USAPhotoMaps - USAPhotoMaps is an exceptional, free tool developed and distributed by Doug Cox. Use it to automatically retrieve and display TerraServer aerial photos or topographic maps. The program also connects to GPS receivers to display tracks and waypoints or real-time location.
• Importing a USGS DEM for Use in ArcGIS Spatial Analyst - This how-to article provides users with information about USGS DEMs, where to locate them and how to use them inside ArcGIS.
• NASA Embarks on a Sweeping Airborne Expedition - An international team of scientists from NASA and other research institutions has embarked upon a three-week expedition that will take them from the rain forests of Central America to the frigid isolation of Antarctica. 

• Blue Dasher Capturing 360-degree street-level images in Tampa
• Now Available - the GeoEye, Presidential Inauguration from Space’ Poster
• More cool 3D imagery of Washington D.C via ImageScape (DigitalGlobe)