GoldMine is the most affordable CRM for Small Business. Options for Cloud, Mobile and Premise. It's also one of the only CRMs you can own.
Goldmine + GoConvert
Use GoConvert and Goldmine to maximize the ROI of your sales and marketing spending. Enrich information in your Goldmine account, improve contact and deal information, and start visualizing marketing and sales performance. GoConvert works around the clock to automatically fill in missing data. Your insights get better all the time.