You can always customize the rig yourself, not necessary need to follow what Idealtech had posted on their website, those rigs are for references only.

They did sell parts without casing included, but price will be slightly different I think, not sure if they count it as full rig or not if without casing.
Typo from Viewnet.

R9 380 is slightly faster than GTX960 in raw performance but it is not leading GTX960 in all games though, thanks to Nvidia GameWorks.

If you want better performance out of the box without doing too much tweaking to the card, GTX960 will be a much wiser choice, it consumes less power too.

GTX970 is almost twice the performance of GTX960, if you don't mind 2nd hand item then of course it will be a great addition to the rig. Bottleneck issue depends on the games you play, those CPU demanding games will suffer some CPU bottlenecks but most of the time your are still safe because latest Skylake i3 is a very capable CPU for gaming.

FSP Hexa+ 550W is enough for GTX960, for R9 380 it should be enough too but you are recommended to get a better PSU to run AMD card due to power hungry.

Nope I mean i3 6100.

i3 4160 is Haswell.

The 4GB GTX960 is overpriced TBH, GTX970 is more worth in value and yes the Hexa 550W can power up GTX970 without issue.

ATX
Intel Core i5 6500 - RM 855
ASRock H170 Pro4 - RM 595
GSKill NT 8GB DDR4 2133MHz Value RAM - RM 249
Palit GTX970 4GB GDDR5 Reference - RM 1299 (After rebate RM 100)
Samsung 750 EVO 120GB SSD - RM 249
WD Blue 1TB HDD - RM 219
Seasonic M12II EVO 620W - RM 409
TP-LINK TL-WN881ND PCI-E WiFi - RM 65
NZXT S340 - RM 320
BenQ GL2460 - RM 539
Windows 7 Pro OEM - RM 200 (Free upgrade to Windows 10 until July 2016)

Total: RM 4999 (Idealtech price inclusive of GST)

mATX
Intel Core i7 6700 - RM 1375
Gigabyte B150M-D3H - RM 439
GSKill NT 8GB DDR4 2133MHz Value RAM - RM 249
Palit GTX970 4GB GDDR5 Reference - RM 1299 (After rebate RM 100)
WD Blue 1TB HDD - RM 219
Seasonic M12II EVO 620W - RM 409
TP-LINK TL-WN851ND PCI-E WiFi - RM 75
CM N200 - RM 209
BenQ GL2460 - RM 539
Windows 7 Pro OEM - RM 200 (Free upgrade to Windows 10 until July 2016)

Total: RM 5013 (Idealtech price inclusive of GST)

Just a reference because your budget can have few flexible build, you can spend less on casing and go for better GPU and add in SSD etc.

Idealtech pricelist is stating full rig can get RM 100 off on GPU, so I am not sure if the price shown in the pricelist is already discounted or before discount, interested buyer can ask them for a quotation.

Hi all sifu.

Helping friend to request a low budget around RM2.5k for mATX CPU only.

Usage is DotA 2 while streaming (twitch.tv)

Is it possible to do so?

Thanks.

Finally bought the rig today.

Intel i5-6600
Msi B150 Gaming M3
Zotac GTX970 Extreme Core
Kingston HyperX 8GB
FSP Hexa+ 550w

Thanks everyone for the help! Especially bro Terence! Give this guy an admin tag

Yes