The easiest way is to just go get the drivers
from their individual sites. For example, Intel.com would have the chipset and graphics drivers, assuming it is an Intel based laptop. If it has a Dell wireless card or an Intel wireless card, you can find them at their respective sites. I keep them all on a flash drive, so when I am done installing Windows 7, I'm ready to add the drivers.
Don't forget about Windows Update, either. You can get many of your drivers there.