Thanks for your input Nick. As for as the Google Earth comparison, I was thinking more in terms of image quality. Below are some excerpts from an old article in Aviation Week that talk about the imaging capabilities of Mars Recon:

Just as with National Reconnaissance Office (NRO) military reconnaissance satellites in Earth orbit, the lower Mars orbit will translate into much higher resolution.

This is especially true for the HiRise high-resolution imaging science instrument that will have a Mars surface sampling capability of 30 cm. (11.8 in.) per pixel compared with the Mars Global Surveyor's standard 1.5-meter (59-in.)-per-pixel capability.

The Ball Aerospace 50-cm. aperture HiRise optics look more like sensors on past reconnaissance spacecraft than something going to Mars (see cover). JPL engineers joke that they named the new spacecraft MRO "because NRO doesn't service Mars."

The new spacecraft will have better capability at Mars than the KH-9 broad area Earth reconnaissance mapping instruments used by NRO into the mid-1980s. MRO will also have high-resolution spot target capabilities comparable to those of the earlier NRO KH-7 spacecraft.

http://www.aviationnow.com/avnow/news/channel_awst_story.jsp?id=news/01315top.xml