(4-traders.com) April 04--If your money has been with National Penn Bank and you're wondering what the $1.8 billion acquisition by North Carolina-based BB&T Corp. means, you can relax -- for now. BB&T, in announcing Monday that the acquisition has been completed, also said its core banking systems conversion, along with account changes, aren't expected...http://www.4-traders.com/BB-T-CORPORATION-11773/news/BB-T-What-National-Penn-Bank-customers-should-expect-from-the-BB-T-takeover-22118268/