Owners who resisted hiring after the recession are taking on workers to keep up with rising demand for products and services. Faulkner Hyundai in Harrisburg, Pennsylvania, is adding seven people to its staff of 92 because new cars are selling at their fastest rate in eight years. The ripple effect from growth in construction and consumer spending are feeding the increase, says Susan Woodward, an economist who helps software maker Intuit compile its hiring surveys. The recovery in South Florida's real estate market and economy has allowed Tadd Schwartz's public relations firm to step up its hiring. Publicity the last few months about Brad Barrett's product Grill Grate sent orders for the backyard grill accessory soaring. Barrett is now looking for two workers for the Cartersville, Georgia, company — one to help fill orders, and the other to handle administrative and marketing tasks. When Microsoft Corp.