Given the fact that server failure is a 'when', not an 'if', I'd recommend using "Google Apps for your Domain". It takes the hassle out of it all (as you alrea

Given the fact that server failure is a 'when', not an 'if', I'd recommend using "Google Apps for your Domain". It takes the hassle out of it all (as you already likely already know!) and leaves you (and your team?) free to focus on making money.