Thanks for the replies. Cathy, I just missed an eBay auction for one that would have worked--it had under 3 hours to go, so I ran into the living room to confirm the measurements on the top, and by the time I got back to my computer, someone else had snagged it with BuyItNow. GRRRRR!!! Story of my life, which is why I tend to be an impulse buyer.
Anyway, in looking at the completed auctions, I saw a few that sold within the last 5 days that were within the same price range with shipping, so I'm hopeful that eBay will be an option. In the mean time, as Mike suggested, I'm going to start peeling off the veneer and the second layer to see what's underneath. Perhaps I can use what's there until I find (or make) the perfect replacement top. And I'm heading out to the local home improvement store this morning, I'll take a look at what's available in veneer.
Sue