I found this game late in it's life cycle so I never got around to picking up the expansion before it vanished. As a result, I'm looking for a source from which I can pick it up. Anyone know of anyplace short of Ebay that might have a copy?:confused:

Good luck finding something!:p

The following site has the SMAC Planetary Pack available, SMAC and SMACX together:
www.softsaver.com/Games/Games-Page1.Htm (http://www.softsaver.com/Games/Games-Page1.Htm)

Other than that, well...
... just Ebay! You can get both new and used packages there, I do recommend it.
Although most of the auctions are made by professional traders there, especially in the computer section.:crazyeyes