Can this computer run Counter Strike: Source?

I might buy a computer for gaming. I have speakers, a monitor, and the whole shabang. These are the facts about what I am buying. Only respond about the computer and not the other things.
My Components:
Intel® Pentium® dual-core processor E5200 (2MB L2, 2.5GHz, 800FSB)
Genuine Windows Vista® Home Premium Service Pack 1
Microsoft® Works 9
1Yr Ltd Hardware Warranty, InHome Service after Remote Diagnosis
3GB Dual Channel DDR2 SDRAM at 800MHz - 4 DIMMs
500GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache™
16X DVD+/-RW Drive
No Monitor
Integrated Intel Graphics Media Accelerator 3100
Integrated 7.1 Channel Audio
No speakers (Speakers are required to hear audio from your system)
Dell USB Keyboard and Dell Optical USB Mouse
Dell 19 in 1 Media Card Reader
No Modem Option
My Accessories
McAfee Security Center with anti-virus, anti-spyware, firewall, 30-Days
Dell Online Backup 2GB for 1 year
My Software & Accessories
WildTangent Games
Also Includes
Mouse included with Keyboard purchase
Adobe® Acrobat® Reader 9.0 Multi-Language
Integrated 10/100 Ethernet
Windows Vista™ Premium
Dell Remote Access, free basic service
No Entertainment software pre-installed
How about this computer?
AMD® Phenom™ II X4 925
AMD® 790FX Chipset
Dual NVIDIA® Graphics
800MHz DDR2 Memory
Killer™ K1 Gaming NIC
Alienware Approved Liquid Cooling

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