Newsletter Subscription

I have the site http://www.easytraveller.gr and want to collect emails for those interested to receive our newsletter for travel related offers. Does anyone have a good looking tool (code). I plan to put it at the end of the page next to Weather. Want to open a small pop up page where to put the email details. My page where I want to have this is html

I have answered to this in the Other forum. Please go take a look at that.

Thank you very much I will take a look and if I need help will come back