Time frame is probably 3-6 months, it will take me a while to get around to doing it.

I want more than just a NAS box. The server that I am replacing does more than just serve files. The server that it is replacing is a Windows box, so it is 99% certain that the new box will be also Windows box (I need a Windows server running here and I already have a Linux server that I am not planning to replace at this time).