Sandeep -- you have your machines loaded up with a bunch of stuff that would get you thrown out of a normal office . Games? Movies? Music? -- what are you doing all day? . Looks to me that my office server will fit just fine into the 256G drive -- that's plenty of room for AC and Medware, especially if the auto-cleanup of old backups can be made to work.
The minimal amount of accounting we do is handled by the bookkeeper with Quickbooks on her own machine, no need for that to be on the server, since no one else needs access to it. Granted, if it were on the server, it could be included in the automatic backup, but that doesn't really seem necessary in our simple case.
Ditto word processing tasks -- the clerks don't really do much of that, and they have their own programs and routines that they don't, and don't need to, share.
So, I envision a pretty small, pretty simple, implementation of SBS in our office.
. Games? Movies? Music? -- what are you doing all day? 
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