Finalizing htpc build- am I missing anything?

[alvine]

Hello guys this is my htpc build this is not my first build but I am new to htpc and I would like to check with you guys before I pull the trigger and buy those parts from newegg.
My budget is ~$450 and obviously I do not need monitor since this box will be hooked up to my hdtv. I also dont need imput devices (mouse keyboard), I dont need os I will install windows 7 for now.

($54.99) Rosewill R379-SM Black/ Silver 0.8mm SGCC Steel MicroATX Slim Case Computer Case PSU ATX12V Flex 300W Power Supply - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147098

($74.99) SAMSUNG Spinpoint F1 HD102UJ 1TB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16822152101

($69.99) Foxconn A7GM-S 2.0 AM2+ / AM3 Ready AMD 780G HDMI Micro ATX AMD Motherboard - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16813186165

($12.99) pci wireless card
http://www.newegg.com/Product/Product.aspx?Item=N82E16833180030

($40.99) AllComponents 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16820159021

($55.99) AMD Athlon X2 4850e 2.5GHz 2 x 512KB L2 Cache Socket AM2 45W Dual-Core Processor - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103255

($99.99) SONY Black/Gray 2X BD-ROM 8X DVD-ROM 24X CD-ROM SATA Internal 2X Blu-ray DVD ROM Model BDUX10S - Retail
http://www.newegg.com/Product/Product.aspx?Item=N82E16827131054

<b> Here are my questions </b>(if you could please put number to the one your responding to that would be sweet)
1. The 780g mobo I have chosen has integrated ati hd 3200, do you think it has enoght muscle to play 1080p movies smoothly? (x264, bluray movies)
2. Is the 2.5ghz amd low energy processor enough for this?
3. I was thinking about using windows7 rc or my old copy of windows xp. Noobish questions but in case....I can play bluray movies in xp right?
4. Do you think 4gigs of ram is to much for this simple system? I can get 2gb ram for $20 so I could save and get a tad faster dual core amd for that


Thanks for reading this and taking your time I appreciate it.

 

[AKM880]

The 4850e CPU can take care of the HD video already. The HD 3200 will decode just fine. The only things I can think of are, the PSU and maybe the RAM. This is what I suggest. That Rosewill PSU is probably a real bad generic one that will probably suck.

RAM - G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122

Corsair 400CX 400W PSU -
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008

Antec Earthwatts 430W PSU - http://www.newegg.com/Product/Product.aspx?Item=N82E16817371006