ASP: Financial Tools

This Mortgage program is more than just a calculator, it provides a complete listing of payouts with totals. Excellent free software for home use or financial websites.
Price: GPL

This is free source code for implementing a loan calculator in either ASP or JavaScript.
Price: Freeware

A few lines of asp code you can use to get real time exchange rates. You can then use this to produce dual prices on your site.
Price: Free (GPL)