No, definitely use Mailchimp over rolling your own. It will save you time and what they offer for free before having to pay is fantastic. Although I haven't us

No, definitely use Mailchimp over rolling your own. It will save you time and what they offer for free before having to pay is fantastic. Although I haven't used the other two suggestions, both look to offer great tools to go even further than just collecting the address. I myself am doing the same thing right now, just looking for a good way to promote sharing of the page after someone signs up. I want to incentivize people to share with friends by some sort of affiliate program.