High Definition Monitor Nice Is This A Good Gaming Pc?

Is this a good gaming pc? - high definition monitor nice

OK, just to say I am not a extreme gamer. I just want an enjoyable gaming experience. Here are the specifications and costs € 687 TTC

Processor Speed (): Q8200 Core2Quad 2.33
Memory Performance (): 4 GB DDR2-1066
Hard Disk (): 250 gigabyte hard drive
Optical Drive: 16x DVD ...... Optical
Video Card () Video Card: Nvidia 9400GT 1GB
Sound card) (Audio: Chanel High Definition Audio 6
Screen) (Monitor: Monitor not included
Keyboard & Mouse: PS / 2 keyboard and optical mouse
Pack Antivirus: AVG Anti-Virus Free Edition
Office: Open Office suite preinstalled
Warranty: 1 year warranty return to base
Operating Systems O / S: Windows Vista Home Premium
USB removable media: Not included
Networking (Broadband): 10/100 Port Installed
TV Show: Not Installed
2. Optical Drive: Not Installed
2. Hard Drive: Not Included

Decent graphics card?
another 1, I have chosen is
ATI Radeon HD4850 512MB
But the costs of enterprises 60Euro more