Anyone can recommend me a good laptop?

Any brand would do,

Budget is rm4000(not a single sen more!),

I'd probably be spending alot of time with photoshop, powerpoint, online games like TF2, L4D etc, watching alot of anime and shows, editing music videos, recording songs and editing them, watching youtube vids.

Size? Not sure about size. Would bigger be better? Most of the stuff i watch aren't always HD or anything. And about the memory, would it be better if i got a external HDD to store my stuff or get a laptop with large space in it? Since my stuff might reach up to 500GB(probably more) in the future.

And one more thing battery life. I'd like a to-be-able-to-watch-a-couple-of-hours-of-anime-before-the-battery-goes-dead kinda battery life.

Thanks in advance! Btw, I live in jb and travelling up and down to s'pore isn't a problem. So maybe it might be useful. Somehow.