Forex Money Management

When it comes to the Forex markets I had been having some trouble with position sizing and proper risk management. However I have been working on an excel spreadsheet that helps calculate both the pips and lots size on any one trade given a set stop or specific number of lots, while keeping in mind both leverage and the "2% rule". Suggestions and critiques are welcome.

UPDATE: Here is an updated version that is able to calculate position sizing that is not expressed in one's own currency. It also has a macro to download Forex quotes from Yahoo Finance, however they are delayed 15 minutes.