Can I run Left for dead on my macbook?

I have the last gen mac book.

My specs are as follows:
OS: Windows XP (through boot camp)
Processor: It has a 2.1 ghz Intel Core 2 duo
RAM: 4 GB of 667 MHz DDR2 SDRAM
Available Harddrive space: 25 GB free
Video RAM: 144 mb
Video Card: GMA X3100

The specs on the sight are:

Minimum:
OS: Microsoft Windows XP / Vista / Vista64
Processor: Pentium 4 3.0GHz
RAM: 1 GB
Video: 128 MB, Shader model 2.0, ATI 9600, NVIDIA 6600 or better
Harddrive :At least 7.5 GB of free space
Sound: DirectX 9.0c compatible sound card

Recommended:
OS: Microsoft Windows XP / Vista / Vista64
Processor: Intel core 2 duo 2.4GHz
RAM: 1 GB
Video: Shader model 3.0, NVIDIA 7600, ATI X1600 or better

So with these specs, do you think my computer can run left for dead? If so, how well?

I tried running the demo on my macbook that had the 2.4 ghz and 2GB of RAM. with the same video card and it was very laggy for me even on the lowest settings. Not sure if the extra RAM would make it work for you. Hope this helps a bit.