I have an XPS 210, 6400 CPU, BIOS 2.0.5, Windows 7 32 bit, 4 Gig RAM

Should I upgrade to BIOS 2.4.0? I want to be able to boot from USB among other things.

Another person said they upgraded to a E6600 and are running Windows 7 64 bit. Is this a worthwhile upgrade?

Thank you for your help.