im with you smuzzy, 2 pairs of kayanos that i use for the 'gym'*
anonymouse, I think its more the lateral collateral ligament thats hurting, my knowledge of ITB is more that it drags the patella out of its natural tracking line, could be wrong though?
*havent been to the gym in years
EDIT: actually having a quick look you could be right, ill go speak to running shop