I work in a fairly intense environment that requires me to have a backup computer at the ready in case my primary computer fails. I upgraded recently to a 17 inch MBP running Bootcamp. My old primary is now my backup (HP NX9420) but it weighs a ton. Lugging both computers is tough. So...I've thought about replacing my aged HP with the new 11 inch MBA. My question: Is the 11 MBA at least as capable, if not more capable, than my old HP? Here are the specs: HP NX9420 XP: Core2 Duo (Centrino) T7200 @ 2.0GHz 667 MHz FSB 4MB L2 Cache 2GB RAM ATI Mobility Radeon X1600 256MB Apple MBA 11: Core2 Duo @ 1.6GHz 800MHz FSB 3MB L2 Cache 4GB RAM 1066MHz 320M Graphic Card 256MB I would love to dump my 7.8 pound HP for the much smaller and lighter MBA if it is up to the task! Thanks!