Make sure you do your research and get involved in web hosting communities. A good site to look into besides NamePros for this is Web Hosting Talk. Lots of activity going on over there and is focused around hosting where as NamePros is focused around domains. I recommend visiting both frequently...
Unlimited does not really exist, it's a marketing attempt to acquire more customers for some of these big greedy companies. GoDaddy is at least somewhat honest in their marketing and resources they provide to customers.