Originally Posted by CrackerJacker
Is it some kind of MMO. I hosted a lot of FPS games. You dont really need 12-20 gigs of ram lol. I have never played minecraft but just stick 8 gigs and that should be fine. Do you have a static IP and some awesome upward bandwidth
Can I host a Minecraft Server?
Server - Minecraft Wiki
Just get a quad core, with a good amount of ram you'll be fine hardware wise
Not for minecraft. It's ~100MB per player, ~100kbps per player (maybe 80 now) and the server itself takes 700-1GB alone. Minecraft is very memory intensive, then comes cpu. It's cpu heavy as well, but having anything opteron 250 or more will be fine.
In my opinion, get a computer with at least a phenom II x4 920 or better. I use the 920 and ran a server on my home compute bbefore i moved onto personal servers. Preferably go am3 socket, then get 4GB of ddr3 ram. This will assure plenty of ram for the OS and server. If it's just a minecraft only server, run windows server 2003, it's better than vista or 7 at running actual server software. Make sure you got a least 1 mbps upload, that's for 10-13 people. It takes a ton of upload for this game, i hate it too. For the graphics department, buy whatever unless you plan to game on the computer. The server is in CLI format, an 8MB video card will be fine, as i have used one on my server to run the server. But if you're playing on the game as well, then get a decent video card.
As a side note, download speed means squat in server land. Upload matter a ton more. Not enough upload, the best hardware in the world won't matter. You'll be capped by whatever's the weakest part in your server, which is probably the upload since we live in america, land of the slowmo internet.