Budget: <RM5k
Brand : non-Acer
Screen size: 15.6"
HDD: 500GB
GPU: Any decent card
RAM: min 4GB
Usage: Heavy use powerpoint & AutoCAD, multi-tasking on average 300MB of the data file size, mmorpg gaming ie AION, HD blueray playback

so far have the following in mind :
a. ASUS N61Ja
b. TOSHIBA F60-BD531
c. DELL XPS 1645
d. MSI GX720

any advice and/or recommendation r welcomed
thanks~