Buying a new laptop

I am thinking of buying a new laptop under 30,000-35,000 PKR. ($300-350). Something around $400 might also work. I am not much into gaming or stuff. Usually, I play stronghold extreme or civilization V once every 2-3 months. I currently have an HP laptop, but it overheats as hell. Due to the overheating issue, I have to give it a minute’s rest after around 15-45 minutes of use.

As I am a freelance writer, I intend to use the laptop for writing, watching movies and some gaming at normal graphics (nothing hardcore).

I was looking for the following features in a laptop:

1. No overheating whatsoever.

2. Good battery life.

3. SSD preferred but not necessary.

4. A good design (hey, I plan to use it as my office).

5. And finally, Intel i3 or something of similar power (optional).

I was hoping that maybe you guys could help me out, since my laptop has started acting weird. I am currently on another machine, not much powerful. HP has a sale thing going own, maybe I can get some discount there as well.

I look forward to your recommendations.