Direct Mail Prospects

Hello guys =D

Recently my friends from the hosting industry has given me 300 emails from their client list, so I can email them to offer my web design expertise to them.

I’ve just bought sitepoint.com Web design business kit, and checked out the Direct Mail samples. I’ve got the rough idea however I hope you guys could advice me on how to create the best email to market my expertise to those 300 emails subscribers.

How do I make it catchy, making them to read on and make it less like a “spam” message.

Is offering 100% Money back gurantee a good call? Will it comes back and haunt me? How many of you guys have tried it?

Hope you guys could advice me on writing the email.

Thank you =D~