MacBook.. or MacBook Pro?

Ok..

At first I wanted a Macbook Pro due to the amazing specs it has..
but after buying an iBook to get used to Mac OS I have grown to love the tiny size of my 12" G4..
Macbook Pro's smallest shell is 15" but the Macbook offers a 13"...
Also I love the iBook because of the white case gloating a signiture apple feature..

I no that I shud look at what I need spec-wise for what i'm going to use it for..

I want mainly to use this laptop for Online gaming watching movies (and the general mac uses music, photo's, vid's, etc...)
The macbook pro offers a mammoth 256mb graphics card!!!!
But the macbook only offering a 64mb Graphics card (same size as in my PC laptop which i bought nearly 4yrs ago!!!!)
1 thing that confuses me tho is this:

Intel GMA 950 graphics processor with 64MB of DDR2 SDRAM >"shared with main memory"<

What does shared with main memory mean!?!?!?!

My dream laptop would be the spec of the Macbook Pro in a white 12" case...
but we all no this ain't available... yet...

Can anyone help me deside..??

Shared memory means the memory for the video card is actually the system ram.

If you're using it for graphic heavy games then I would go MBP.