Money market accounts at conventional banks and s&l's now yield only about 1/2% interest. You are probably better off finding a checking account that has no service fees and no per-check charge these days if you want to write checks.

However, there is a new category of financial institutions, the 'web bank' that today pays nearly 2% on a money market account. Limited check writing, but insured by FDIC up to the usual $100000 limit. These "banks" have no public offices, no branches, and low overhead and work fine for normal business transactions. I use Net Bank, but there are 3-4 others out there.

They do charge a monthly fee of about $3 if you want them to mail you monthly statements, but even this is waived if you are satisfied with printing out your own statements from the www.