Gmail (mail, calendar, contact) on Mac OS X Server has sense ?

[fa.ce]

I'm totally new to Mac Mini Server.
I use a gmail account for my shared calendar, contact, mail.
In a small office everyone access via web to those services.
Now that i've bought a Mac Mini Server has sense to setup (is possible??) a gmail account on that computer ?
I don't think so ...
I should move to iCloud account or there're other solutions ?

[dimme]

If your happy with gmail, I would stay with it. It is one less process to administrator.

[fa.ce]

I'm not clear the advantage at this point to use a Mac Mini Server.
I cannot use for google account and not for icloud one, is it correct (for mail, calendar, contact)?
So i could only use for sharing docs and some other minus staff ...
I'm missing the point.

[dimme]

I have a mac mini running ML server. I purchased the mini used for the following functions.
I want something that would run 24/7 and use very little power to run my crashplan backup for all 3 of out macs, downloading torrents, and itunes shared library. I added server so I could run time machine to backup our two macbook pros. Seems server is the only supported way to do this, and it's cheep. As far as the other functions, they have no use to me. Email, calendar is all thought google.