CCK or CiviCRM for clients in a Drupal project management solution?

How to represent contacts, or clients, in Drupal?

A CCK recipe (and this is a common need so it should be a recipe) or the other obvious solution, CiviCRM?

I suppose it depends on what one wants to do with it.

Our use case is for managing our clients, in a yet-to-be-fully-developed project management system.

See:

http://pingv.com/blog/laura/200709/agile-rapid-growth#comment-1097

http://pingv.com/blog/cyberswat/200706/project-management-drupal

So how should clients be represented? CiviCRM to integrate into marketing? A custom content type would be easy to have a drop-down-- can we have a dropdown of users or CiviCRM objects limited to a group. An autocomplete of everybody in CiviCRM wouldn't be bad. That exist yet?

Resolution