New System, Reassurance?

Hello, all. I'm building a new system and have two in mind: the first one will work perfectly, the second one (Core i7 based) I'm not so sure about. Here's the specs of the second:

MSI X58 Platinum mobo (http://www.newegg.com/Product/Product.aspx?Item=N82E16813130216)

PC Power & Cooling 750W PSU, 60A@12v (http://www.newegg.com/Product/Product.aspx?Item=N82E16817703009)

2GB OCZ Reaper DDR3 1333 (http://www.newegg.com/Product/Product.aspx?Item=N82E16820227355)

Intel Core i7 920 (http://www.newegg.com/Product/Product.aspx?Item=N82E16820227355)

Sapphire ATI Radeon HD 4870 x2 (http://www.newegg.com/Product/Product.aspx?Item=N82E16814102768)

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All in an Antec 900 case (it will fit the card, I've checked). I can downgrade the 4870 x2 to a GTX 280 if necessary. My main worry is the X58 working well with all of this - can I get a professional's opinion? There are no reviews to go on for X58/Core i7. Thanks so much!

Slomo:

So does dual-channel RAM not work in a board that supports triple-channel? If so, what RAM do you recommend for it around the $100 price range? (Decent quality RAM, good brand name.)

The dual channel RAM is all older stuff that does not meet the voltage requirements of the i7. You'll want one of the 3-stick kits, and frankly if you can't afford a 6Gb kit you should be looking at a Q9550 and an x48 board.

You should think about ASUS or Gigabyte or EVGA for the MB. MSI would be my last choice. They have an awful record lately. I have seen good reviews for both the ASUS P6T and an EVGA board.

Thank you for all the replies.

I am going for a slightly cheaper set of DDR3 as I am blowing most of my money on the Core i7 and high-end GPU.

I will look into the G-skill and Corsair, I can go as high as $120-$130.

In terms of motherboards, how is this for an X58 (I am determined to use Core i7)? (http://www.newegg.com/Product/Product.aspx?Item=N82E16813121361) - Intel BOXDX58SO X58

That one and the MSI board are the ones that fit my budget. However, I can get a slightly better one if I ditch the 4870 x2 and go for a GTX 280 instead for now.

If the Intel BOXDX58SO is a decent board, I will shoot for that. If not, I'll ditch the x2 and go for a GTX 280, and get the EVGA/Asus board.

Last to clear up, NO dual-channel RAM setup will work in this board whatsoever?

As Kurtyboh said, you could go with a 1gb 4870 and use the $200-250 saved to get 6 gigs of ram and even get a better board.

There are actually quite a few options but picking the right one really depends on your needs.