Yes, I agree with wirespeedconsulting. Get your own IP pools, register for an AS number. Get a BGP session set up with each of the ISP's. That way you can advertise some of your IP pools to one ISP and the others on the 2nd link(Prepend the AS number and advertise the 2nd link pool on the 1st link and vice versa(for redundancy incase of single link failure)).