Yes, I'm looking for a geological map.
I'd like to avert the 'unchanging planet' trope for a scifi setting I've been plodding along making/not making.
And yes, I'd be willing to spend cash on this. (Up to 50$.)
Given 50,000 years, its quite possible there have been some human mega-engineering projects: an inland sea in Australia, a greened Sahara with rivers, etc. - or perhaps even putting in some new lands in convenient locations, ala L. Sprague De Camp's "Viagens."
http://en.wikipedia.org/wiki/The_Continent_Makers
Even in the near term, there are suggestions being made for technological fixed to the global warming problem.
http://en.wikipedia.org/wiki/Geoengineering
Possibly at some point in the future we might decide a warmer, wetter climate than we have currently is ideal, which will effect shorelines, deserts, etc.
Or, with 50,000 years, we may have gone from global warming to a new ice age, and our cybernetic, sunlight-powered, full-environment-suited descendants simply don't care, since they can live happily on arctic ice as well as in jungle heat. (See Arthur Clarke, "Fountains of Paradise.")
And speaking of FoP, orbital beanstalks might in time grow to a virtual ring city, with a whole row of giant towers around the equator...
Bruce