HP beat Dell in worldwide PC shipments for the second quarter of 2009, but in the U.S. market, aggressive pricing enabled Dell to take the lead. Acer followed in third position in the U.S., with a neck-and-neck Apple and Toshiba vying for the next two spots.
– Worldwide PC shipments totaled 68.1 million units in the second quarter of 2009, Garter is reporting. The number represents a 5 percent decline from the second quarter of 2008.

IDC, in a separate July 15 report, estimates second quarter 2009 numbers including desktops and portable PCs but ex…