Try checking out Zoho CRM. Zoho is free for up to 3 users and starts at $12 per user per month for the Professional Edition and $25 per user per month for the Enterprise Editon. Zoho is great if you're looking for a fully-featured CRM system at a reasonable cost. But it can be difficult to set up the system and maintain it, especially for first-time users. However, if you have some experience with using CRM systems, Zoho CRM shouldn't be too hard to manage.