I've got a QX9650 coming as a work perk and $1500 to build a complete system.  The only thing I don't need is a DVD burner (got a spare). It's a gaming rig (flight sims primarily) with an eye on future-proofing so I want SLI or Crossfire capability.    
 
Here's what I've got planned (all prices are Newegg)
 
ENERMAX Uber Chakra ECA5001BL Aluminum / Steel ATX Full Tower
$125
 
MSI P7N Diamond  NVIDIA nForce 780i    
$260
 
BFG Tech BFGE88512GTSE GeForce 8800GTS (G92) 512MB  
$255
 
Pwr Supply ZALMAN ZM750-HP 750W ATX12V V2.2 / EPS12V
$160
 
mushkin 2 x 2GB 240-Pin DDR2 SDRAM DDR2 800    
$90
 
HITACHI Deskstar E7K500  500GB 7200 RPM  w/ NCQ
$140
 
ASUS VK222U Black 22" 2ms (GTG) Widescreen LCD Monitor  
$289
 
Microsoft Vista 64 SP1  
$110
 
ZALMAN CNPS9700 LED 110mm 2 Ball CPU Cooler  
$54
 
Total = $1484

That looks sweet to me; Also, a free quad...from work ?! You sir, suck hehe
 
might as well get a new kb if that one is crusty though, how about a comfort curve 2000 from microsoft ? Pretty sweet looking to go with your awesome rig !
 
http://www.newegg.com/product/prod [...] 6823109149
 
I personally like the enermax pandora because it look OEM, and goes with the samsungs that have silver really well.

I'd completely forgotten about a new keyboard and mouse!  Thanks for the reminder Royalcrown.