gaming mouse/keyboard or normal mouse/keyboard ?

hi guys ,
im going to buy a new gaming pc for my birthday, i have selected all the things needed for a good gaming pc this is my rig :

• AMD Phenom X4 9550 CPU
• AMD CrossFire 790X MB
• 2GB DDR2-800 Memory
• 320GB (250GB) 7200 RPM SATA-II HDD
• 20x Double Layer DVD+/-RW
• ATI Radeon HD 4850 512MB 16x PCI-Express Video [Cross-Fire]
• 7.1 Channel 3D Surround Sound
• 600 Watts Subwoofer Speakers
• 10/100/1000 Network LAN
• Windows VISTA Home Premium

total: $885

i just want to know that im buying this rig im confused in taking a gaming keyboard & mouse or just to buy a normal

Will the gaming mouse/keyboard that im going to buy is going to be more helpful as in useful to me in this gaming rig that i have above or normal mouse/keyboard will be just fine .

im going for the G3 mouse and the G11 keyboard what you guys think please let me know

my friend told me to give with the normal mouse because they are not so different !

The gaming mouse/keyboard and keyboard will not any better at gaming, but you will have lot features in it .I have the G11 and I always use a few of the macro keys in games and the lighted keys is also a good features