a used HD5850 should cost 450 ILS(about 1/3 of the price of 7850 at my country)
new 750w PSU should cost about 400 ILS so 5850+750w PSU = about 850 ILS + more 4GB RAM (about 100 ILS).
my mobo doesn't support bulldozers.
my phenom ii x4 isn't enough for max out bf3 and to run 5850 CF properly...