notebook advice needed
 

i am thinking of buying a notebook and i want to run maya on it.
this is what i got so far

dell Inspiron 9300 X-treme

centrino 1,83 ghz
512 mb
17" tft screen
40 gb harddrive
ati radeon mobility x300 128 mb(pci express)

now i heard a lot of comments on maya and radeons. does anyone now if this is going to run or that i would have to go for the much more expencive nvidia geforce 6800 go 256 mb card

if somewone has experience with the new radeons please share.