asus rampage(now in stock)i7 980 £1100 or the phenom 11 x6 1090t/asus crosshair amd 890fx £400,ive never tried phenom before but £4oo for a 6core cpu and a really good motherboard sounds quite good,would the phenom x6 be any better than my i7 930 4.4ghz,would the extra cores be any good in games because thats all i use my pc for?