Honestly if your up and down speed are good and stable you have a pc on 24/7 your all good if you can foot the bill.
A good idea is to look into a nas type system Buffalo linkstation pro duo runs a nix based system with 1.8ghz (I think) not sure about the RAM costs around $100+ throw in a 2Tb an you have yourself a storage + media player + BYOND game host.