New computer, curious on FPS.

Hello,

I am not slow as far as computer knowledge goes, just uneducated. I would like to know what kind of frames I should expect from my new when it arrives in 2 weeks. I would like to know the idle FPS - Temp and the FPS - Temp that I should expect to see in games like crysis, World of Warcraft and Bioshock.

The computer build is as follows:

CAS: Titan A88 Xtreme Liquid Cooling Gaming 420W Case w/ Full Side Panel Reservoir

CPU: (Sckt775)Intel(R) Core(TM) 2 Duo E7400 CPU @ 2.8GHz 1066FSB 3MB L2 Cache 64-bit

CD: (Special Price) LG 22X DVD+/-R/+/-RW + CD-R/RW DRIVE DUAL LAYER (Black Color)

HDD: Single Hard Drive (320GB SATA-II 3.0Gb/s 16MB Cache 7200RPM HDD

MOTHERBOARD: GA-EP45T-UD3P Intel P45 Express CrossFireX Chipset LGA775 FSB1600 DDR3/1600 Mainboard w/GbLAN,USB2.0,IEEE1394a,&7.1Audio

MEMORY: 4GB (2GBx2) PC1333 DDR3 PC3 10666 Dual Channel Memory (Corsair or Major Brand)

MULTIVIEW: Non-SLI/CrossFireX Mode Supports Multiple Monitors

NETWORK: Onboard Gigabit LAN Network

OS: Microsoft(R) Windows Vista(TM) Home Basic w/ Service Pack 1 (64-bit Edition)

POWERSUPPLY: 680 Watts Power Supplies (Hush Power Supply SLI/CrossFire Ready)

USB: Built-in USB 2.0 Ports

VIDEO: NVIDIA GeForce GTS 250 1GB 16X PCI Express (Major Brand Powered by NVIDIA)
VIDEO2: NONE

PRICE: (+834)

I might just be asking too much but if someone will reply / <3 forever