Looking to build a dedicated game server. Budget is about than 400 dollars may increase if necessary. I have like 5mbps upload (can upgrade if necessary). I plan on hosting a Minecraft (about 50 slots; this might not happen tho), GMOD (24 slots), TF2 (24-32 slots), and CSS (24-32 slots) server. Probably would like to expand the box later if this works out. What parts should I pick? Excluding mouse/keyboard/monitor, pretty much just the case and stuff inside it. Which Linux version should I get?