HELP w/ my sub-$400 computer build

[arkie]

First: I am NOT a gamer, but I would like this computer to be strong enough to play videos and run dual monitors (23-24" range). 99% of the time, this computer will be used for internet browsing, entertainment (movies/music), and powerpoints/worddocs. I'd like to run a moderately quick athlon 64x2, a big HD (1TB range), not sure how much memory I need (assuming 2-4gb), ATX case + motherboard (allowing plenty of room for additional storage in the future), DVDRW, ~4-500W PSU (do I really need 80+?), and a budget dual DVI video card. Do not care what it looks like as long as it works. Keep it as CHEAP as possible while using reliable parts. Will probably be running XP 32bit for now, but would like to be able to upgrade to Windows 7 whenever a reliable version appears on TPB. I'd like to buy it all on newegg.

So far, this is what I've come up with:

CASE: Cooler Master Elite RC-310 -- $39.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16811119203)
MOTHERBOARD: ASUS M4A78 Plus (open box) -- $53.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16813131381R)
CPU: AMD Athlon 64 X2 7750 Kuma 2.7GHz -- $64.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16819103300)
HDD: Western Digital Caviar Black 1TB -- $99.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16822136284)
RAM: CORSAIR 4GB (2 x 2GB) 240-Pin DDR2 SDRAM 800 (PC2 6400) -- $34.99 (after rebate)
(http://www.newegg.com/Product/Product.aspx?Item=N82E16820145241)
DVDRW: LG -- $24.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16827136144)
PSU: Thermaltake Purepower 500W -- $34.99 (after mail-in rebate)
(http://www.newegg.com/Product/Product.aspx?Item=N82E16817153052)
VGU: POWERCOLOR 4650 1GB Radeon (open box) -- $41.99
(http://www.newegg.com/Product/Product.aspx?Item=N82E16814131138R)

TOTAL: $395.92

I'd like to keep the price as near to $300 as possible. If you see any component that might be overkill or could be replaced w/ something cheaper, let me know. Also, if you see any components that aren't going to work together (from personal experience or forum hearsay), please let me know. I'm kinda new to all this and this is my first build. Also, feel free to "build" me a new system from scratch providing newegg links. Thanks guys.

 

[bomberboysk]

Memory, better timings:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820227267

Motherboard...open box has nothing, no i/o panel, no manual, no cables, etc:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128376

GPU(better than 4650 and cheaper):
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=10010506

If your on a budget...drop to a 750gb hdd:
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136359

And use that to get a triple core phenom II:
http://www.zipzoomfly.com/jsp/ProductDetail.jsp?ProductCode=10010065&prodlist=celebros

PSU:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817341012

 

[Fatback]

Everything boomer has said is perfect an open box motherboard means no accessories and this is you first build so trust me you going to wont a manual. The RAM,HDD,CPU,GPU,and PSU that boomer linked you to will better suit you needs. The first thing you need to know when building a computer is you always won't to build it so you will have room for upgrades in the future. That's why it is better to use an AM3 motherboard because any CPU for around the next 1 or 2 your will use the AM3 socket so it will make it easy for you to upgrade it.