$700 Budget Blu-ray/HD movie and general use rig

You have an excellent build – obviously you have researched it quite a bit, But I can suggest a few changes:

Motherboard
GIGABYTE GA-MA770T-UD3P AM3 AMD 770 ATX AMD Motherboard – Retail - $70 AR
http://www.newegg.com/Product/Prod [...] 6813128392

The above is the same price as the ASUS mobo but is a two time winner of the Customer Choice Award for AMD mobos at newegg. More importantly, I prefer the UD – ultra durable - construction, see this link for more info:

http://www.tomshardware.com/review [...] ,2094.html

:In addition to the UD construction, advantages include:
1. Can Use DDR3 1333 memory in multiple channels, ASUS only shows as one channel
2. Has 4 PCIe x1 slots compared to only 2 for ASUS – but has only 2 PCI slots – one less than ASUS
3. Has 2 Firewire ports on back plate compared to none with ASUS
4. Has Coaxial S/PDIF Out port as well as optical


Memory
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL7D-4GBRH – Retail - $99 with free shipping
http://www.newegg.com/Product/Prod [...] 6820231276

This memory costs only a few dollars more but has better timings at 7-7-7-21. Seldom will you find a way to increase performance for such a small cost. Note that the spec sheet for the memory shows that it is compatible with the mobo selected above:

http://www.gskill.com/products.php?index=223

Graphics Card
XFX GTS 250 512MB PCI-Express Video Card - $100 AR
http://www.frys.com/product/586599 [...] IN_RSLT_PG

Note that despite all the hype given ATI cards, when you look at the THG selections of best graphics cards at various price levels, the nVidia cards virtually rule the roost in the $85 to $150 price range with 4 of the 5 cards recommended in that range. One is the GTS 250 – the best card for $110 – and here you get it for $10 less thanks to a rebate.

http://www.tomshardware.com/review [...] ,2491.html

Power Supply
OCZ ModXStream Pro OCZ500MXSP 500W ATX12V V2.2 / EPS12V SLI Certified CrossFire Ready 80 PLUS Certified Modular Active PFC Power Supply compatible with core i7 – Retail - $45 AR
http://www.newegg.com/Product/Prod [...] 6817341016

Your selection of the Corsair PSU shows you understand the importance of having a quality PSU. However, like most things you can also spend too much on a power supply in relation to the quality of the rest of the system and find an advantage in redistributing some of the money.

In this case, 500w is more than ample for your system with only on graphics card. You might like to run it on this power supply calculator – I think you will find that as formulated you will need much less than 400w so 500w provides a nice margin of safety or expansion.

http://www.extreme.outervision.com [...] orlite.jsp

In addition, the PSU listed above is ranked highly as shown in this ranking put together by many participants over the course of several years years where it is ranked as Tier Two the same as the Corsair you selected:

http://www.eggxpert.com/forums/thread/323050.aspx

The $45 savings can be applied to a better case, a CPU or graphics card upgrade, or saved towards your next system or upgrade.

First off, I would like to say thanks to everyone who has replied so far. Really good information. Rockyjohn, great information and a nice concise presentation. I switched out the ASUS mobo with the GIGABYTE and the G.SKILL I had with the G.SKILL Ripjaws. As I see it now, I am staying with the HD 4850. I am only going to purchase hardware through newegg and the lowest they have the GTS 250 is $140.