Nearly ready to order 4850 CF build

OK so with a lot of help from this forum i think I've almost got a build together that's ready to order. I'm going to be using it for gaming mostly although it will also get some use with CAD projects. I'm probably going to be getting a 22" monitor with a 1680x1050 resolution. I'd also like it to be able to handle the next 2+ years or punishment I'm going to give it. So with that in mind here's my build:

CPU: Intel Core 2 Quad Q9550 (OC to 3.5+)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115041

MOBO: GIGABYTE GA-X48-DS5
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128332&Tpk=GA-X48-DS5

HDD: 1) Western Digital VelociRaptor 150GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136260
2) Samsung Spinpoint F1 1TB
http://www.newegg.com/Product/Product.aspx?Item=N82E16822152102&Tpk=spinpoint%201tb

GFX: 2 Radeon 4850's (512mb) in CrossFire
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102770

PSU: Corsair 750W TX Series
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006&Tpk=Corsair%20750W

CASE: Antec P182
http://www.newegg.com/Product/Product.aspx?Item=N82E16811129025&Tpk=Antec%20P182

CPU COOLER: Ultra 120 eXtreme
http://www.newegg.com/Product/Product.aspx?Item=N82E16835109125

RAM: Corsair DOMINATOR TWIN2X 4GB 1066Mhz
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145214

So I've got just a few questions, First please note that I'm living in New Zealand and buying things from overseas is out of the question. Secondly my budget is NZ$3500 including Screen and keyboard and tower (already got a mouse) but if you discount shipping, screen and keyboard its about NZ$3000.

First question is around the VelociRaptop? Is it worth it? is it worth the extra cost and the huge price per GB ratio or is it more of a bragging factor. Because if its not actually going to improve proformace in any noticeable difference then i will probbaly just ditch it and save some money.

Second question is around the case. Is the Antec big enough to handle two 4850's in CF and a huge cooler like the Ultra 120 eXtreme? I've heard some people say that i may loose 2 HDD bays but that's not really an issue, I'm more worried about the heat issue since the cards are single slot coolers.

Third(ly?) is that PSU going to be able to provide enough juice right now? and since I'm planning to 'upgrade' to 2 260's in SLi late next year if physx takes off will it be slightly future proofed?

Lastly the motherboard says that its DDR2-1200 but since the prices of DDR2-1200 are almost as high as DDR3 over here I've just gone with some 1066 (not 800 because that could hinder the overclock). Will i get any problems with that?

Any help would be appreciated as i hope to get this ordered in the next week probbaly. Cheers all.
Merrychristmas
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  1. I think you can drop the Velociraptor. Minimal performance increase really.

    I was going to object to the case on several points before I even read your comments. Antec 300 would save you some cash and be enough. Antec 900 or 1200 would be better yet. You want lots of air flow for two 4850s, and lots of room. If you don't like the looks... I could make a few other suggestions.

    Ask yourself if you really want to open and close a front door on your PC all the time. Also, anytime you have a full, solid, front door, that means no air can be pulled in the front.

    The PSU is fine for those two cards. Future upgrades happen in the future and I have no prediction what you will actually end up buying or what the power consumption will be.

    Your RAM selection is fine.
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