Minecraft Server Build?

[waterise]

Hello.

I want to know what is the cheapest & best build for a Minecraft Server that could hold up to 50 people without any lag or anything.

Thank-you.

 

[Dylzan]

Read around this has been answered before, CPU: AMD A8-3870K 3.0GHz Quad-Core Processor ($104.99 @ Newegg)
Motherboard: ASRock A55M-HVS Micro ATX FM1 Motherboard ($54.98 @ Outlet PC)
Memory: Mushkin Redline 8GB (2 x 4GB) DDR3-1866 Memory ($46.98 @ Outlet PC)
Hard Drive: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($64.99 @ Amazon)
Case: Cooler Master Elite 370 ATX Mid Tower Case ($34.98 @ NCIX US)
Power Supply: Antec 450W ATX12V Power Supply ($34.98 @ Amazon)
Total: $341.90