The SEC already had the authority to suspend mark-to-market accounting. This bill just re-affirms it. Furthermore, mark-to-market is an
accounting technique.It may result in fraud but there is no "transfer of wealth" about it. Furthermore, if history is any indication, corporations can always cook their book if they really want to.
The FDIC is indeed running low on funds and raising the limit at this point in time is a bad idea. However, the FDIC limit does not hide the financial health of a bank or have any direct impact on it for that matter. The limit governs what happens to customer deposits after the bank fails. Having a higher limit may indirectly help troubled banks by placating their depositors and convincing said depositors that their money is safer.
About the tax cuts. The $150 billion is a drop in the bucket. If you really want to bring costs in line, take a very hard look at Social Security, Medicaid, Medicare, and Defense spending. Everything else (except now this bailout) is a rounding error compared to those.