After further thinking, I decided to leave only 2 competitors - HP Pavilion, A10-5750M+8g+1tb+17.3" - $600 and Lenovo IdeaPad g510, i5-4200m/3550m+4g+500g+15.6" - $525/$425. 4200m beats 3550m, but is the difference worth $100? Dunno how much 17.3 differ from 15.6. On the other side 8650G outperforms 4600 by 40%. HP win this one. Also HP weights slightly less, than Lenovo (2.2k vs 2.5k) Again HP wins. Guess HP uses plastic and Lenovo puts alluminium, but not sure. Aluminium is more preferable. Plus Lenovo is the former IBM, which is originally a computer manufacturer, but HP is a fax/printer manufacturer. Lenovo wins? Also there's a question of build, ventilation, design and feel. Currently I have Pavilion DV6-1350, and I'm not satisfied with its design. Keyboard is not chicklet. Also ventilation is poor/non-working at all. Heard its a typical issue with HPs. BTW, how huge is the difference between 8G an 4G ram? Finally, is there any difference between single ram setup vs dual ram setup?