Dell Inc. (DELL) plans to sell PCs at Wal-Mart Stores Inc. (WMT), the world’s largest retailer, in a departure from Dell’s approach of selling machines only directly to customers. The computer maker will begin selling two of its Dimension desktop computers in about 3,000 Wal-Marts beginning June 10, and plans to announce additional moves into retail in coming months.

TOPPS CO.

The Upper Deck Co. has made a pitch to buy The Topps Co. (TOPP), a bid that would join two iconic baseball-card companies. Topps, maker of baseball cards and Bazooka bubble gum, said it was not sure Upper Deck’s $10.75 a share bid is superior to a $9.75 a share bid from a group of investors led by former Disney CEO Michael Eisner. That deal received regulatory approval April 3.