I'm pretty sure you can download the emulators for most of these, these days. So get any 'Nix/Qtopia capable palm top computer and rock it out. I don't intend to ammortize, find future values of money, or any of that stuff anymore. I'll talk to my bank, my accountant and place possibly naive trust in them.
My financial plan is a nice chunk o' Vanguard TSX, Profitsharing with my company, savings account at ING and 3 e529(or some other tax deferred savings accounts) for the kiddie poos. The wife wouldn't let me try to tripple their college savings down in A.C.!
But I think I remember the HP, that was the one that had two screens and did graphing?