Win 7 32 or 64 on the lappy

[ati]

hi all

i got my self a lappy from dell and comes win 7 home premium.

i have win 7 pro 32 and 64, as soon as the lappy gets here this will be installed and everything else will be formatted on the lappy.

i wish i can install XP but no drivers available for it.

anyway which do i install the 32 version or 64 version?

i wanna avoid any incomptability issues etc got plenty of work to do

Lappy

I7 processor

4 DDr 3 1333 MHZ

500GB

willbe mostly used for office 07, cad, etc.

[Agent]

64bit IMO. This seems to be covered weekly - have a quick search and you'll find loads on it

[ati]

cheers and already on it