Earthquake: Thanks again. 2 hrs its ok,I can manage with laptop.Because 6hrs or 4 hrs goes for 2 or 3 days in a month but 2 hrs goes 2 or 3 days a week.
Earthquake: Thanks for reply. Mac Book is out of my budget. I have 2 options which fits my budget. Asus G56JR: http://www.asus.com/in/Notebooks_Ultrabooks/G56JR/specifications/ Lenevo Y510P: http://shopap.lenovo.com/in/en/laptops/lenovo/y-series/y510p/ Lenevo Y510P has SSD and Graphic Card upgrade option.
Well, a UPS won't help if his power goes out for 6 hours. The G56 seems capable, it has a fast CPU, a good screen, but the video card isn't that good. It will be fine for light-moderate 3d work, but not heavy 3d work or games. Its typical for a laptop video card, but much less powerful than a desktop GPU. The battery life…