If you like the really quick response times of Versaweb, what makes you look for an alternate?
And, if I am not wrong, most of the good hosts offer support on a 24 x 7 basis. So, you should be fine with a CST host as well. Maybe, try and look for some possible potential hosts and check them on their response times at the hour of your desire.
What are you looking for in terms of disk space and bandwidth?
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