I am interested in tracking my collection digitally with either a spreadsheet or a piece of software. Does anyone know if such a thing already exists? If it does not does anyone know where I can download a list of cards by set to start building one?

your best bet would be to compile a list using TwoHeaddedDragon, though they are missing a couple random promos iirc... here's a link:

http://www.twoheadeddragon.com/ufs/index.html

Warderbrad said:

Well you can use twoheadeddragon.com for a data base then use excel for a spread sheet I guess....

I think you can download a complete list from twoheadeddragon, as an excel sheet, guess if you ask nice they wouldn't mind you using it to generate a new spreadsheet just to keep track of your own collection.