donation in Drupal

My site have a number of different persons each representing different diseases. I made a content type "person" to represent each person, and add some cck fields such as name, image, location etc...Now all I want to do is add the ability to donate to their cause. Each individual would have a donate button on her/his page. I'd also want to be able to track the donation and reflect the amount that had already been collected by each person (for example $25/$500). No开发者_高级运维w all the money will be going to one paypal account (not to each individual person's account), so I'm really not sure how to track the amount for each person. Any advice on this is highly appreciated! I'm using drupal 6

If you have a Donate form tied into a Paypal account, you could easily create some hooks to capture the form submission, look at the donated Amount, and update the appropriate CCK field for that particular 'person'.