Mini ITX build

[Lucasaee]

Hello,

I'm building a Mini ITX media center using a MSI H61I-E35 Motherboard.
It has:

4GB Kingston HyperX DDR3 RAM
Intel G530 Dual Core (2.4Ghz)
Lite-on iHas DVD burner
No hard drive but looking for a 1TB HDD (full size, cheaper)

I have a few questions:
1. Will a 300W PSU, Mini ATX, Unbranded be OK ?
2. Can I add a PCI-E LAPTOP wifi card or does it need to be compatible with the board ?
3. Can I add USB 3.0 via pinouts on the board, I want to replace the standard USB's on the front.

Motherboard image & details here:
http://www.msi.com/product/mb/H61I-E35--B3-.html

Cheers !

 

[Lucasaee]

Changed link.
I was thinking temporary. All the parts have killed my funds & the chassis comes with the 300W unbranded PSU. Will it work ?

 

[Lucasaee]

Only problem, i'm going to be using the PCIe for wifi.
It doesn't matter I guess it was just a luxury lol.

Do you know if I can use a PCIe Laptop wifi card on the board ? then I could just drill a hole and put the antenna pigtail out the back of the case.

 

[Lucasaee]

True that ive NEVER seen my speeds go over 2mb in this Area.