i'm looking for a good path to email potiential clients as well as existing. i'm sure theres alot of people with experience out there. if you had to send someone somewhere or to some software where would you go? any one got reviews or other threads i could look at?
Software or service? The answer lies in the features you want. A common package that many folks use is ConstantContact though I've seen mention of another player (maybe even free - I haven't checked it out yet). CC is a subscription service. They handle everything except the creative and list management. The other is a load on your server app. Your job to manage everything.
BTW - welcome to WebmasterWorld and the Ecomm forum in particular.