Buying a New PC, Need Suggestions

So far I have decided the following :

Gigabyte / Asus Normal DDR3 Supported MB
AMD Phenom x4 Quad Core
2 GB DDR3 at 1066 MHz
1 TB Sata II HDD
ATI Raedon HD 5500
20" samsung LCD
iBall 550 Watt PSU
Creative X-Fi
Altec Lancing Speakers
Windows 7 Ultimate x64
APC 650 Watt UPS

Now I am confused about some of these config, because a frnd of mine said it would be better to use 2 Nvidia 9500 GT as SLI than any 9800 GTX or ATI HD 5500
Another One Said not much speed difference b/w Athlon x2 5500 Black Edition & Starting Level Phenom

So anybody have any ideas ? or give me a better config for my pc ? overall price shuld be same. Oh and my main criteria is gaming.

 

i think you should go with intel Xenon or Quad Core

 

naah, AMD i am using, a lot better than intel
thanks for suggestion

 

I agree, with a computer like that you would really be better off with a much larger monitor. 20" is way too small.

 

Just curious, shouldn't the RAM be higher.
Maybe 8 Gigabytes with a bigger monitor.

 

Will check the price n decide.

I know but there are probs.

Whats the relation of Ram & Monitor ? I thought GPU does that

 

nice info.

 

Its Intel Xeon

Go for Phenom II X6

And go for corsair atleast 4 GB RAM