Indeed, the infinity line is the DFI budget line, and they are working on a lanparty version of the 975x.
The infinity series of AMD mobos are much less expensive, the cheaper ones go for about $70 in the US and top out at $105 for an NF4 SLI s939 board. Taking your normal US/UK prices thats probably about £70ish, under half the price ocuk are asking here for this 975x, quite a difference. People have been mentioning it probably being $140-180 in the US, so lets hope ocuk are just gouging a bit on the pre orders and it will fall to a more reasonable price considering its not exactly fully featured agaisnt the liks of the Asus etc.
This is the same price as the top of the line lanparty crossfire board for AMD that ocuk are selling atm heh.