The following video is from Friday's Motley Fool Money roundtable discussion with host Chris Hill, along with analysts Joe Magyer, Jeff Fischer, and Ron Gross. In this week's installment, the guys look at why Wal-Mart is suffering worse than other retailers, why Home Depot is riding high on a lumpy housing recovery, what's killing Microsoft and other PC makers, what Warren Buffett bought this week, why BP's troubles are far from behind them, and what three stocks the guys picked this week as ones you definitely need to keep an eye on.