My hoster of many years charges for a similar setup 60 EUR, "unlimited" bandwidth (whatever you can pump though 100Mbit within a month), RAID10, etc, 75 GB external backup, as a managed server. And at another big hosting company you get an even bigger package for 45 EUR, not managed though.
However, I remember that hosting in the US is surprisingly expensive for some reason, and has been for many years. Don't know why.
