I am actually hesitating between two models, as I am looking for a thin, light, and good performance notebook, for both work, casual uses, and a bit of gaming. I have never used mac, but I d be interested to try it. One thing I can t get.. Processors on mac always seem very low in comparaison with PC, is that a mistake to think that way just by looking to CPU speed numbers? For informations, I have a good PC desktop at home. I can t decide, which one should I choose between these two models? (I am in Japan, I converted the price from yen to usd, yen is very high nowadays) SONY VAIO Z /// Price: 1700 USD Windows 7 64b 13,1" screen Full HD: 1920 x 1080 Core i5-520M 2,4 Ghz 4GB RAM / 8GB MAX 1,066MHz DDR3 SDRAM Nvidia Geforce GT 330M GPU with 1 GB DDR3 SDRAM SSD 128GB DVD supermulty 7/8 hours battery life 1,4 Kg 2.3〜3.2cm X 31.4cm X 21cm New MACBOOK AIR /// Price: 1435 USD Mac OS X 13,3" screen LED backlight 1440 x 900 Intel Core Duo 1,86 Ghz 2BG RAM / 4GB MAX 1,066MHz DDR3 SDRAM Nvidia GeForce 320M with 256 MB DDR3 SDRAM Flash Storage 128 GB (NO CD/DVD player ? ) 7 hours battery life / up to 30 days standby time 1,3 Kg 0.3〜1.7cm X 32.5cm X 22.7cm Note that I can also have this configuration, getting close to the Z configuration, but the price jump to 2000 USD, and It s really too expensive for me now.. Mac OS X 13,3" screen LED backlight 1440 x 900 Intel Core Duo 2,13 Ghz 4GB RAM / 4GB MAX 1,066MHz DDR3 SDRAM Nvidia GeForce 320M with 256 MB DDR3 SDRAM Flash Storage 256 GB (NO CD/DVD player ? ) 7 hours battery life / up to 30 days standby time 1,3 Kg 0.3〜1.7cm X 32.5cm X 22.7cm Thank you in advance for your advices.