My new system build

Hi guys--I just wanted your opinion on a system I'm thinking of getting for fsx. Case--Corsair Obsidian 650DPower Supply-- Thermaltake TRX-1000M TR2 RX 1000WProcessor-- Intel Quad Core i7 2600K O'ck to 5.0GHz *mb Cache - 850Mhz Graphics ProcessorCPU Cooling--Corsair CWCH100 - WaterblockIntel Motherboard--Asus P8Z68-V ProDDR3 Memory--Corsair Dominator GT DDR3-1600 GB( 4x2GB ) CL7Graphics Card--EVGA nvidia Geforce GTX580 3GBHard Drive--OWC Mercury 6G 120GB SATA3 SSDHard Drive 2--Western Digital VelociRaptor WD6000HLHX 600GB SATA3 10K rpm 32MBOptical Drive--Samsung SH-B123L 16X SATA Blu-ray ComboSound Card--Creative Labs Sound Blaster X-Fi Xtreme Audio PCI-EOperating System--Microsoft Windows 7 Home Premium 64-bitShipping--FedEx ground Total $3031 Monitor--Dell Ultrasharp 30" $ 1300 With this build I have the option of enabling Z68 Cache. Would I want to do that?Any comments?ThanxSorry I hit the enter key twice.