Something else to consider..
A CPanel license is around $400/year. You dont need a superpowerful server to host CPanel. So dig up an idle p4 server, load CentOS and buy Cpanel and install it.. (This is alot easier than you would think) Grab a battery back up for a coulple hundred bucks and plug in your cpanel server in your office/home cable modem and run with it.. (You will want a static IP) Chances are, you will have as little downtime or less than a datacenter.. And instead of paying $200/mo x 12 months = $2400/year you pay $400/year plus your cable modem bill and the one time cost of your hardware..
SG