Should i go with AMD of Intel on this? Please I need some help!!

Hi everyone Im about to purchase a new laptop. These are my options:

- HP G62-234DX
Intel® Core™ i3-350M processor
4GB DDR3 memory
15.6" LED high-definition widescreen display
250GB Serial ATA hard drive
Intel® HD graphics
Feature up to 1696MB total available memory for intense detail.

- Gateway NV53A24u
VISION Technology by AMD AMD Athlon™ II X2 dual-core processor P320*
4GB DDR3 memory
15.6" TFT-LCD high-definition widescreen display
320GB Serial ATA hard drive
ATI Radeon HD 4250 graphics
Feature up to 256MB dedicated video memory for lush images and vivid detail.
(it says its dedicated but i read its shared not sure)

- TOSHIBA L505D-GS6000
VISION Technology by AMD AMD Turion™ II dual-core mobile processor M500*
4GB DDR2 memory
16" TFT-LCD high-definition widescreen display
320GB Serial ATA hard drive
ATI Radeon 4200 graphics
With 256-1918MB dynamically allocated shared graphics memory

- Gateway
VISION Technology by AMD
AMD Athlon™ II X2 dual-core processor M300*
4GB DDR2 memory
15.6" LED-backlit high-definition widescreen display
500GB Serial ATA hard drive
ATI Radeon HD 4200 graphics
Features up to 1919MB of HyperMemory that supports Unified Video Decoder (UVD), OpenEXR High Dynamic-Range (HDR) technology, Shader Model 4.0 and Microsoft DirectX 10.0.


These are all from best buy, I'm hoping to do some gaming with it plus school work, i want to be able to run almost any application if possible and some games, such as crysis, wow, COD, etc.
I would be doing more gaming than anything else though, and I know how these are not really gaming machines but i'm on a budget guys.
I read how intel HD sucks but the HP laptop is the only one with i3 which is newer than the other cpu's.
I saw some vids on youtube, gaming with an i3 intel hd and they look good, they actually made me want to buy the i3 machine. But I need someone else's opinion with this. Would you guys recommend the i3 new technology, or go with the one of the AMD laptops. Any advice will be highly appreciated, aswell as pointing me to a better laptop on my budget.

Thanks!!!