各位高手給個建議吧

- NZXT H2 White Case

- XtremeGear 750W SLI/CrossFireX Ready Power Supply

- i7-2600K 3.40 GHz 8M Intel Smart Cache LGA1155

- Asetek 510LC Liquid Cooling System 120MM Radiator & Fan

- Asus Sabertooth P67 w/ TUF Thermal Armor

- Corsair 8GB (2GBx4) DDR3/1600MHz Dual Channel Memory Module

- NVIDIA GeForce GTX 570 1.2GB x1 (Video Card)

- NVIDIA GeForce GTS 450 1GB (Physx CARD)

- 2TB (2TBx1) SATA-III 6.0Gb/s 64MB Cache 7200RPM HDD

- Sony 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive

- Dell U2410


Mainly use for AUTOCAD and First Person Shooting Game.

Should i change the video cards to Quadro FX 2000?

Any suggestion?