I think it's kinda fun looking up new parts and designing a new desktop. So if money wasn't a concern, what would your "practical" dream build be? I say practical because I know someone will say a Cray or a nasa satellite...
Asus Rampage IV Extreme - $450
Intel i7-3960X Extreme - $1,050
OCZ Agility 3 240GB sata6 SSD - $300
G.Skill 4x4GB DDR3 1866 - $130
(2) EVGA GeForce GTX 580 3GB Hydro Copper - $1,460 ($730ea)
(2) WD caviar black 2TB sata6 - $500 ($250ea, raid 1)
Asus Xonar Essence STX - $170
SeaSonic 850w PSU - $210
Lite-On 12X Blu-ray burner - $100
Corsair Obsidian Series 800D full tower - $250
Total price on Newegg: $4,623.88
I would still need to add the water cooling system for the graphics cards, but that would be a beast of a machine. And I think I could actually build something very close to it for about half the price by making small changes. For instance, using the slower CPU (100mhz difference) at about half the price. Skip water cooling and get regular 580's, that'd save almost $500 on the two.
"You're not going crazy. You're going sane in a crazy world!" ~Tick