Successful email marketing doesn't have to be expensive or stressful.  There are a LOT of do-it-yourself Email Service Providers you can make use of for an extremely reasonable price (about $15 a month) - all of which are easy to use, and can guarantee great delivery rates and list management capabilities.

Here's a rundown on 3 of my favorites so far:  Constant Contact, Vertical Response, and MailChimp.