As you've already found out with your current hosting (or lack of) it's not always about the lowest priced deal. If you want Excellent Value for your dollar, hit up Brad at
www.mojohost.com
They aren't the cheapest game in town but their prices are very competitive and when you consider the quality of the equipment and support you get, it's an excellent value.
I've be hosting with them for over a year now and my sites haven't gone down even once.