For what it's worth, I ordered Automation Direct cylinders yesterday and they will be arriving tomorrow. The offer free 2-day shipping on any orders over $49 and have a fairly reasonable selection:
http://www.automationdirect.com/adc/...ders_(A-Series) 7/16" bore up to 2" bore. Bimba or McMaster would probably have more selection, but these met our needs this year and were much more inexpensive (around $60 for a 2" bore 4" stroke).