1: There was no need for a second thread. Keep everything to one thread. Thanks
2: The Y550 comes with 2 different options for NVidia graphics. Which version are you looking at, the G 210M or the GT 240M?
3: The Studio XPS 16 (mentioned in your second thread) comes with either an HD 3670 or an HD 4670. Which are you looking at?
4: In order of performance, they would go 4670 > GT 240 > 3670 > G 210
5. The difference between the CPUs in the Studio (2.4) and the Lenovo (2.53) isn't going to be that noticeable, so I wouldn't worry about that as much.