Hi,
I didn't realize how old the thread was until after I replied.. Sorry.
But as for clustering, and asking your data center..
Clustering is not for everyone. I figgured if you wasnt' that sure about it, then discuss it with the people you get your server through, and they could explain everything.

Not a problem though, as long as you set it up and it is working good for you.

Have a nice day,
Tim L