I found this and thought those looking at brokers might find it informative. The CFTC requires forex brokers to have a minimum of $1 Million net capital or $5 Million if they are trading options. You can check your brokers available capital at the link below. If you don't find your brokers name, you may have to go find out what LLC name they operate under.
http://www.cftc.gov/files/tm/fcm/tmfcmdata0704.pdf
http://www.cftc.gov/files/tm/fcm/tmfcmdata0704.pdf