This motherboard is around £100 and appears to do symmetrical Crossfire:
http://www.cclonline.com/product-inf...942&tid=frooct
http://www.microdirect.co.uk/home/pr...ource=googleps
Info on the Foxconn website is a bit sparse:
http://www.foxconnchannel.com/produc...d=en-us0000519
If this motherboard does do Crossfire it does look quite cheap for a socket 1155 Crossfire capable motherboard.