If anyone is interested in how to motivate employees without resorting to cash -- which doesn't work well -- I would highly recommend "Peak: How Great Companies Get Their Mojo From Maslow" which, of course, is heavily based on Maslow's work. Tony Hsieh said it helped him think about culture at Zappos; it's a good read.
http://www.amazon.com/Peak-Companies-Maslow-non-Franchise-Le...