Both are very similar; they are made by the same company, are from the same range and use the same chipset. Asus generally give you plenty of options for overclocking I don't think there would be any noticible difference between the 2.
I would possible avoid spending circa £180 on one of these boards though. Scan have the Deluxe listed for about £85 but not in stock - probably because Socket775 is a bit old now and the premium boards have been discontinued. So you are paying a very high mark up for a seller that has it in stock.