$450 HTPC build

I want to build a new HTPC, doesn't matter if it's AMD or Intel based, what matters is that I do need a new optical drive, wifi network card (because I use wifi router at home), and HDMI port to connect my LCD TV (1080p res). My budget is $450, but I might be able to put a little bit more if necessary. Do you have any suggestion for my HTPC build? Btw I am in Australia.

What's it for? If you're only going to playback movies and watching Netflix, $450 is far too much.

Never mind, I think $450 would be just fine. I'll include a 2TB HDD for your films.

This: http://pcpartpicker.com/p/18L4H

I don't think a ITX motherboard has a PCI Express x1 slot

It doesn't, but it does have a x16 slot. You can simply put the wireless module there.

You could always buy a Google TV and an external drive.

that's okay.  you can plug in a 1x card into a 16x slot no problem.

Here check out this list

http://secure.newegg.com/WishList/PublicWishDetail.aspx?WishListNumber=17453034

just add in a large hard drive and you're good to go.  that silverstone case is amazing as an HTPC setup

http://pcpartpicker.com/p/18NvG

This is going to be the smallest one so far with an Antec case and psu which is a good brand of psu and also a good hard drive for fast playback and powerful enough for 1080p playback.

You generally can't get parts shipped here from the US, and our parts aren't so cheap as the ones people have listed for you above.

Try this, from pccasegear.com (cost $502): parts list for htpc build

 

Bitfenix prodigy ($89)

A6-6400k ($89)

MSI FM2-a75ia-e53 ($105)

Corsair CX-430 ($59)

G.Skill Ripjaws F3-12800CL9D-4GBRL 2x2gb ($45)

Western Digital Blue 1gb HDD ($69)

Samsung DVD burner ($25)

TP-Link TL-WN851ND 300Mbps Wireless N PCI Adapter ($21)

The bitfenix prodigy is pretty big for an htpc for most people, although I use one. So maybe have a look to see what other ITX cases they have that might suit your needs better.

Pay a bit more and get the amd a8 5600k ... you get 2 more cores  

First I want to say thank you for all the suggestions here, I really appreciate it and I can see now that the APU build is actually the best option I can have. I like the ITX build as well, but I have something I forgot to tell you earlier. I will be having a 2.1 speaker which I will get from my cousin. If I'm not mistaken it is the Edifier HCS2330, and it sounded pretty epic last time I went to my cousin's house (he also had Asus Xonar DX, but I don't know if it really made a huge difference in terms of sound quality). Is the onboard soundcard good enough on those ITX motherboards or should I get a better dedicated sound card, perhaps the Xonar DX just like my cousin's?

I looked at this 
http://www.msi.com/product/mb/FM2-A75IA-E53.html#/?div=Detail 
and it seems like I won't be needing a dedicated wifi network card, so I shouldn't have problem if I want to use a dedicated sound card. I'm still not 100% sure, and I want to know that you guys think about this. 

No, I am not using Netflix. I have most of my movies in my mechanical drive of my main rig, and the rest are DVDs, and those DVDs are the only reason why I need optical drive.

http://pcpartpicker.com/p/195Cz

or

http://pcpartpicker.com/p/195FC