Help with newbie PC build

[gambit_declined]

Hi folks!

Hoping you guys can give recommendations on my newbie build. Just for web surfing and Dota.

Budget hope to keep within 800 - 1k, better if even lower.
This is what I came up with after research.

CPU+MB: Intel Core i5-6400 + MSI H110i Pro AC
RAM: Kingston HyperX 1600Mhz DDR3 2x4GB
CASE: Jonsbo UMX1 Plus Window [Silver] OR Cooler Master HAF Stacker 915R
HDD: Western Digital Blue 1TB
GPU: Pls recommend (Cheap one will do, as long as Dota playable. Don't mind integrated graphics.)
SSD: Pls recommend
Wifi: Pls recommend
PSU: FSP Hexa+ 550W [80 Plus]

If any of the component above are overkill, kindly advise on which to downgrade.

Questions:
#1 - Can recommend SSD, Wifi card, and any other cases with small form factor/good airflow?
#2 - PSU can go lower (450W)?

 

[Koenig168]

RAM: Kingston HyperX 1600Mhz DDR3 2x4GB
- You need DDR4

CASE: Jonsbo UMX1 Plus Window [Silver] OR Cooler Master HAF Stacker 915R
- This is a matter of personal preference.

HDD: Western Digital Blue 1TB
- There are two versions, make sure you get the 7,200 rpm one.

GPU: Pls recommend (Cheap one will do, as long as Dota playable. Don't mind integrated graphics.)
- GTX 1060 3GB or 6GB

SSD: Pls recommend
- 240GB should be just nice. As for brand, Samsung, Transcend, PNY, whichever is on sale.

 

[ZrE0_Cha0s]

1) SSD: OCZ Trion 150 240GB
wifi card: none (since ur mobo only have 1 slots for it and beside that its build in with it )
cases: other than those 2. will be TT Core V1.

2) can. if u just getting GTX 1060.