That does seem to be on the right track. Would a single processor with 1GB of ram be enough for a company of 50+ users? Would it be any benefit to step it up to double or tripple the ram and double the processing power? This also will grow as we do to about 75 users. Also needs to be able to handle many people all accessing it at once.

Perhaps I am mistaken on the load it takes to handle many file requests.

I do know that we need at least 1TB of usable space if not 2TB. I'm sure some sort of services/support would be needed and that (especially when it comes to servers) seems to drive up the price quite a bit.