There is the Korriban map from WotC. It was in the 2007 Starter Pack and was also released a promo map.
Here's one copy for sale, but I don't know what's on the other side. If it's the promo, it's just one map. If it's from the 2007 pack it will have the Throne Room map on the other side:
http://www.ebay.com/itm/Star-Wars-Minis-Miniatures-Korriban-Map-NEW-/271336159015?pt=Building_Toys_US&hash=item3f2ce53727JediCartographer made another Korriban map as part of his Map Pack 2, but that has been out of print for years. Every several months you might see one pop on ebay if you know what you're looking for.
But he also just made a new map called Tomb of the Acolytes. It's not Korriban specifically, but it would probably suit your purposes, and it's available for $6 at miniaturemarket. (Probably cheaper/better than you could print it out yourself.)
http://www.miniaturemarket.com/aaacifs1.html