Back in January I was able to (somehow) download some nifty GeoTiff files here in Indiana. For the life of me, I do not remember how or where I did that?
Please Help.
I know you've already answered your own question, but with some digging you can also get geotiff files from USGS. This link will get you close USGS Maps.
Geospatial Data Gateway has a pretty good selection of NAIP photography:
The Geospatial Data Gateway (GDG) is the One Stop Source for environmental and natural resources data, at anytime, from anywhere, to anyone. The Gateway allows you to choose your area of interest, browse and select data from our catalog, customize the format, and have it downloaded or shipped on CD or DVD.
This service is made available through a close partnership between the three Service Center Agencies (SCA); Natural Resources Conservation Service (NRCS), Farm Service Agency (FSA), and Rural Development (RD).
DDSM:beer: