lammert - 5:01 am on Jul 26, 2010 (gmt 0)
Hi srynznfyra, first of all Welcome to WebmasterWorld!
My experience with power supplies is that they mainly fail when switched off and on often. The inrush currents and the changes in temperature of the components are the main source of problems. A web server is designed to run continuously and therefore even crap hardware may well serve your website for a significant time.
Of course it would be better to have server grade components, but hey, they come at a price :)
You should make sure to have backups of your whole configuration to rebuild the server in case your PSU dies, or if something else happens with the server like a hacker getting access to it over the Internet. Everyone has now potential access to the server so be sure you have every hole fixed.
It is your first time here and you may not have learned about how we interact here with each other yet, but we try to avoid links to our own site if there is no important reason for it. One of the reasons for this rule as I mentioned here above is that some not-so-nice readers of this message might try to see if your server is bullet proof.