The gateway FX notebook is about the easiest Laptop to upgrade the processor. It is accessible from the back panel
and takes about 10 minutes or less to swap out. Very easy and worth doing once the prices of the 9300 2.5Ghz cpu
comes down a bit. 6mb of cache on the cpu will make a difference in performance. There is no huge difference in performance
from the 32 bit to 64 bit operating system unless there is software specifically written for 64 bits. The biggest difference is that the 64 bit operating system will recognize and use 4gig of memory or more. The 32bit may see 4gig or ram but only can use about 3.3 gigs maximum. I would keep your 64 bit Vista unless you have some old programs that don't run well on it. Otherwise 64 bit should be fine and is not any slower than the 32bit OS. Actually once the software catches up then it will be a lot faster until then it really doesn't make much of a difference.