I wanna buy a computer to use it as website/graphic design also a little video editing (After Effects). I still not sure about choosing between laptop or desktop. So what spec would do the job for me. I'm not looking for an overkilling system as my budget isn't that much. But still something that works for me.
For example what about this:

* intel i5
* 6GB RAM
* GTX 660 2GB

I'm not a pro in computer building so I need someone to help me and advice me about a system for the described usage.