HI.. Could Some one introduce me new laptop

Brands - Any
Budget: RM 2k-2.5k below
Usage: Office usage, word processing, presentation, watching videos, skype, internet browsing, movie downloading, light photo editing, light gaming
Other requirements: good battery life, long lasting

Prefer i5-4xxx


Kindly told me what is different between motherboard if it i5-4200u + nvidia gt 840m and i5-4200m + nvidia gt820m

Also the MSI... may i know the service is ? and after sales how?


Thanks