I have tried a few hosting companies, and the one I have stuck with is Hostgator. They give the standard unlimited domains and unlimited bandwidth sales pitch, but also have the appropriate fine print that says they can cut you off if your account takes too much of a server’s resources. All the hosting companies have the same double talk.

However, their support staff have been great whenever I was stuck, and they use a standard C-panel and Fantastico setup, which makes managing your domains and other features easy.

Give Hostgator a try. Less than $10 a month (paid monthly – deals if you pay for a year) for unlimited domains.