Banks and brokers are in the bull's eyes

--Concerns over mortgage loans collide with the increasing likliehood that banks could be left hodling the bag of debt-laden corp deals --risky home loand gone sour will crimp earnings and damp business in the banks' mortgage units --resistance from investors in high-yield debt market is forcing banks to setp up to the plate to provide financing for debt-heavy buyouts --Banks and brokers are in the bull's eyes