TwentyTen CRM is a child theme for TwentyTen specifically designed as a
Customer Relationship Management tool. It creates a series of taxonomies and
custom meta boxes to collect relevant data, displays the data in a useful
Dashboard page template, features a Download page template that can be used to
copy/paste all the data to Excel for more advanced analysis, and is easily
customized to your specific needs. Oh, and it’s free.