My current macbook Pro 15.4 is about 3.5 years old...it has a 2.5 Ghz Core 2 Duo processor, 4 GB RAM, and a NVIDIA 8600M GT 512 MB Video Card....so Im curious..If I "UPGRADE" to a Macbook Air, 13 inch, i7 processor, 4GB RAM, Intel HD 3000 Graphics, etc....am I actually "upgrading" or "Downgrading"??? I plan on using the MacBook Air as a desktop connected to an apple 27inch Thunderbolt display...giving me both a desktop and laptop if I want portability. I know processor is faster, but am I loosing something with the graphics? Oh..I mostly just use the mac for very ordinary everyday tasks....only thing I sometimes do is Google Earth or Google street view in maps...that is kind of 3D though so am I going to miss the discrete video card? I know I could save money and go imac route...but imac seems so "ordinary" and I love apple design and the MBA. Thanks for thoughts.