nothing wrong with taking a flop here. i dont like pushing, as it nullifies position, and he could have AJ beat. has he called large reraises before? if he hasnt, i still think its a call, maybe you turn a flush draw, or jack high flop. id be wary of an A high flop tho, as AQ, AK or definite possibilities. Would this opponent lay down AQ if you reraised him over half his stack?