I just want to point out that the localmodconfig script was created to reduce compilation time, not boot time. Personally,
I don't think you'll see much difference in boot time. Regardless, one thing you want to watch out for, you have to make
sure that all the modules you will require are loaded, or you'll find certain functions removed. If you use cifs to connect
to a drive on another machine, make sure you mount a shared drive, or cifs support will probably be removed. The
same goes for any other special functions like connecting an ipod, firewire, usb, etc.