A shopkeeper that would offer identification of objects. Shopkeeper would probably be some form of Gnome, just to keep in line with their inherant lore abilities. The interaction would be like the town healers now. "lore mace" instead of "heal disease".

Make the responses something akin to what you'd get with a 100% lore, told directly to the shopper so that others in the room don't hear.

The shop can even be set up more like a home. An old, tired gnomish warrior sitting in his rocking chair doing this as a side job in his retirement. As such, and as he's an expert, his services would be pricy.

As most classes have some form of lore or identify, it shouldn't throw off game balance. It would make the lives of lower level newbies easier though. "Someone told me this jewelled broadsword is good, but I'm not sure. Let's go to Gnomie the Know-it-all!"

-Falstaff