Low-End ~ $250/ €175
CPU: Intel Pentium E5200 2.5 Ghz Dual-core
Motherboard: ECS Micro ATX
HDD: WD Caviar 80GB
Power Supply:Logisys 350W Micro ATX
RAM:OCZ 2 GB 667MHz
Case: CM Centurion Micro ATX
Average ~ $400/ €280
CPU: AMD Phenom II X4 3.0 Ghz
Motherboard: MSI MicroATX
HDD: WD Caviar 80GB
Power Supply:Logisys 350W Micro ATX
RAM: 2x Patriot 2GB DDR2 800 Mhz
Case: CM Centurion Micro ATX
High-End ~ $1250/ €880
CPU:Intel i7 950 3.06 GHz
Motherboard: EVGA i7 Micro ATX
HDD: WD Caviar 160GB
Power Supply:Athena Power 550W Micro ATX
RAM:OCZ Gold 12 GB 1600 MHz
Case: CM Centurion Micro ATX
I Just won the lottery. ~ $15000/ €10500
CPU:4x AMD Opteron 2.6 Ghz 6-core processor
Motherboard: TYAN Quad-Opteron
HDD: 512 GB SSD disk
Power Supply:PC Power & Cooling 1200W
RAM:32x 4Gb G Skill 800 Mhz DDR2 RAM
Case: No Idea where you would find a MEB form factor case.. this motherboard is huge.
So, this node has 128 GB RAM, 4 Processors, 24 cores, and 62 Ghz total processing power on ONE motherboard.
I'm pretty sure all of these components would work together, let me know if I made any mistakes.

