"global" domain name with dynamic ip

Recently, I've started to want a globally-accessible, dedicated domain name for my linux box, instead of the one dyndns services give, e.g. yourhost.dyndnsservice.domain etc - so I've registered an .info domain for 2 bucks (there was some promotion so I got lucky) at godaddy and began to look for a way to bind it my linux box - it turned out that my current dyndns service wants about $25 for that (a bit too much I guess).
finally I've found http://www.dnsexit.com/ which does it for free. you need to sign up, add your domain, set their nameservers in domain control panel as registrar's website, setup dynamic ip client to update and that's it