Posted By:
MWJeff,
According to eBay rules, you may end an auction early, but if you do and the reserve has been met (or there is no reserve) you must sell to the high bidder. If you do not wish to sell to the high bidder, you are obligated to cancel all bids before ending the auctions.
The only potential short-cut to this problem would be calling an eBay PowerSeller representative and having them cancel all the auctions for you...although I'm not sure if this is standard procedure.