The price of VPS hosting has come down so much lately that using regular web hosting for anything more complex than a static site or maybe a WordPress site seems a bad decision. For the cost of a couple of cups of coffee a month, you can get a host you can SSH into and manage your own perlbrew installation, so have total control over what modules are installed, which versions, etc. You can switch between different databases, etc, use git for deployment (just ssh in and git pull the latest code from the stable branch).