contradicting facts

1. Preferred Brand: any brands will do except acer
2. Budget : below 2.8k
3. Usage: for assignment and playing dota 2 (stable and smooth)
4. Preferred laptop/screen size: 14'-15' (prefer ultrabook)

another question....is that ultrabook can last longer if i on my notebook 24 hoours....does it will cause any heat problem?

1. Preferred Brand: Most preferably brands with good customer service
2. Budget : below RM 2500
3. Usage: Engineering drawing + simulation (40% of the time) , gaming, (60% of the time)(eg: skyrim, GTA5, NFS, crysis 3), must be able to support smooth web browsing with multiple tabs (20-30 tabs) at the same time.
4. Preferred laptop/screen size: 14'-15'
5. prefer 2,3 years warranty, but RM 2500 budget is still the priority even if it means only 1 year warranty

Is i7 core more suitable in this case? (heavy multitasking)

Is Toshiba M840-1009X a good choice in this case?

Thanks in advance !

Thanks for the reply..

Can i have more suggestions everyone?

For my case, should I opt for a better gpu or better processor? (i7 instead of i5)

so i should go for which one?