CalcSupreme
CalcSupreme, an RPN calculator emulation and much more, encompasses a wide range of fundamental and sophisticated basic, financial, math/science, and logic operations, accessible respectively via 4 different screens. Basic operations include arithmetic, algebraic functions, data manipulations,... Business/finance includes loan/savings, cash-flow, bond, discount, markup, depreciation, calendar, and miscellaneous calculations. ... User can switch between simple variables and complex variables, where applicable.
http://www.syringasoftware.com/download/CalcS_inst.exe - 5Mb - Download - Screenshot

Stash
So what is Stash and what does it do: Schedule your income and expenses: Stash has an inbuilt scheduling engine that can help you prepare for what's coming in each financial period. You can schedule for any possible combination (any combination of: yearly, monthly, fortnightly, weekly, daily)... plain and simple. ... This is a half-truth. ... Most people think that the heart of a good financial plan lies in the budget. ... Track what you actually spend: The Cash flow section allows you to enter the money as it is spent and as it comes in.
http://www.xplosiventerprises.com/stash/downloads/stash107.exe - 8Mb - Download - Screenshot