Minimizing risk should be supreme! It's not worth chasing a few tenths of a percent or spending too much time doing something fancy. Plus doing something fancy usually costs some admin fees. E.g. An extra .1 % on 100,000 is only $100 a year.
I'd toss nearly all of it into an FDIC insured savings account (ING Direct is 1.1%) with the rest in your corp checking account.
I'd toss nearly all of it into an FDIC insured savings account (ING Direct is 1.1%) with the rest in your corp checking account.