I have been aware of aWeber for many years - and it would be a great alternative if we did not already have an equivalent system in place. Their pricing is based on the number of "subscribers" in your database, as low as $19 per month for up to 500 subscribers, and $69 per month for up to 10,000 subscribers. All features apply regardless of the size of the database - unlimited emails, analytics, image hosting, stock photos and a multitude of templates to name a few. If you need a CRM solution and don't already have one in place, aWeber is well worth checking out.