We've been using Zhen CRM at my company for a while now: http://codecanyon.net/item/zhen-crm/4149099 http://codecanyon.net/item/zhen-crm/4149099 The cool thing

We've been using Zhen CRM at my company for a while now: http://codecanyon.net/item/zhen-crm/4149099 http://codecanyon.net/item/zhen-crm/4149099 The cool thing about Zhen CRM is that its self-hosted and a one-time fee - so you pay for the software one-time, and download and self-host on your local server (LAMP stack) and off you go! You can create as many users as you want, and you don't have to worry about it being hosted at a third party. What I find really cool about it is the price - right now its only $25! (used to be even less, the price must have gone up recently) I purchased it to experiment, but found it has enough features to use as a primary CRM.