I still recommend Sager, if you dont mind importing.

Asus comes to second, as its the biggest bang for buck after Sager. A much smaller bang, though.

MSI is a good alternative too, despite the ah beng design. Much more reliable, to be honest.
Alienware is damn good if you have the budget, ie RM10k and above, as Dell's warranty is far better than Asus in Malaysia. Not to forget the bling bling and design that will make Macbook looks like tin can.

I say, go for Sager, and try not to get Asus, as G53 isnt that good now, as its aging and the specs isnt that good. I dont think G74 can fit your budget. Some of the local models have downclocked GPU which is something you dont want.

Gentech is a decent place to order from, and i do recommend it as a lot of LYN forumers ordered their MSI and Asus laptops from there.

http://www.gentechpc.com/index.asp

I am using an Asus RoG laptop now, though.

Also, i recommend you to check the user's feedback in the notebook section. I can give some feedback on mine.
AW is only great if you have RM10k and above as they have more options to customise.