Hi, I'm just curious that whether the current MBA (base config.) with the Haswell graphics inside is powerful enough to handle multitasking of Skype video call, web programming and full HD video on a full HD external screen. Right now, I'm using a pc laptop which comes with Intel HD graphics 3000 and when I'm on video call and at the same time watching HD video on Youtube as well as opening some kinds of text editing programs. It gets quite lagged, so I'm not quite sure the improvement on Intel HD graphics 5000 can handle those multitasking (without 3D rendering and gaming, but perhaps a little bit of Photoshop) on an full HD monitor. Otherwise, if it cannot handle those tasks I mentioned, is there any much different in the multitasking, if I go for rMBA 13"? Thank you in advance.