You may want to read this: http://theiowarepublican.com/2011/inside-the-numbers-is-cain-really-a-fiscal-conservative-not-with-campaign-cash/
I just got this link from another recent post (from the FEC). Check out the money but especially the daily burn rate. Stark contrast between Cain and ROmney..
http://rickperryreport.com/article/2011-10-15/rick-perry-vs-all-candidates-campaign-finance-report