Require these banks to operate on conservative lines and to fund Govt. guaranteed student loans, commercial loans to credit worthy borrowers, real estate loans that meet upgraded FHA requirements, etc. Make bank officers accountable to the spirit of the regulations as well as the letter and make them liable to disgorgement of bonuses and salaries above a certain level on a declining , prorated basis should the institution fail within five years of their leaving it. That should solve liquidity problems and return sanity to banking.
Compared to the Paulson plan, it would leave a lot of bullets still in the gun to deal with problems that can be solved. As the Dutch said while fighting the Spanish: "It is not necessary to have hope in order to persevere."