Remember that skit where Dave Chappelle gave financial advice to the Wu-Tang Clan? 50 Cent must have taken the GZA???s advice: ???Diversify your bonds, n???ga.??? 50???s portfolio is spread across such markets as beverages (in 2007 he sold his stake in Vitamin Water for an estimated $100 million), movies (he regularly produces and stars in movies as a humanized version of himself), headphones (???