Be more specific on the specs man.
I wouldn't recommend a intel graphics card, but some of the new ones seem alright actually, ATI or nVidia, but as long as it can perform its fine. I mean the ones they have on the Mac are better than some slightly recent ATI/nVidia ones.
If you're going light.
1.3 - 2ghz
a recent 8x AGP or PCI Express graphics card, 128mb or larger, with good speed and shader capabilities
512mb ram (if you're doing only game modelling) 1gb ram (if you're going for a render, but for rendering I'd usually recommend 2gb or higher)
And you should be able to good levels, as long as the rest of your laptop is capable. Plus its down to you really. What's your price limit anyway, so we can have any idea of 'how light' you are going.