7 days for my new computer please help!!!

im about to build my new pc, im going to usa next week for the first time, with the only objetive to bulid my computer, so i really need your help guys please. this is what i wish to buy.
QX6700-------@3.2
4GB Corsair TWIN2X2048-8500C5D 4*1
STRIKER EXTREME
2X BFG GEFORCE 8800GTX OC
SOUND BLASTER X-FI FATALITY XRAM
1xWD RAPTOR 74GB 1x SEAGATE 400GB/300
PSU THERMALTAKE THOUGPOWER 1000WATTS
Windows vista ultimate 64bits

is my choice ok? im not sure about the psu i read several reviews about all this hardware. but u guys can help me more im sure of it.
i already have the case its a kandlaf LCS from thermaltake.
im going to brownsville, ¿where i can find this hardware? , im lost there i dont know any store. help!
also, im going in my car so i can travel somewhere else but not to far, so where shall i buy?
and i cant wait more since my work vacations are almost over only 15 days left!

i dont know USA this is the first time i go, i dont know any store, i hope someobdy of you will point me out in the right direction.
thank you.

The USA is a big place. Even though there are articles on hardware that have been tested, you might not be able to get all your parts at one place, or the place your shopping may not have the part in stock.

If you are used to building a PC, then do some regular shopping on the internet, or talk to the people you would know in the state your visiting. If you absolutely need high end PC within 7 days, you might be better off finding a pre-build PC from HP/Dell/Gateway or the such.

Brownsville, Texas? Closest mail-order outlet with walk-in that I happen to know of is in Houston, about 3-4 hours by car, one way. But their prices are not quite the best around, nor is their selection that extensive. http://www.directron.com/walkin.html

Some of the items you mention - the Striker Extreme, Raptor drives, high-end Corsair RAM, even the CPU - are not commonly sold at retail outlets but must be mail-ordered from one of the dedicated suppliers like Newegg or Tigerdirect. Typically, people who get these parts in 1-3 days pay with a credit card or Paypal, have them ship the items from warehouses across the country to a confirmed address, and then sign for the items from UPS or Fedex. If you know someone trustworthy in the area, they may be able to set that up - just make sure to order only what is in stock.

I'm not sure if you could get warranty, though, in case some of the components fail or are not up to spec. That's one of the primary worries I have when pushing chips beyond rated speeds.

OMG thx alot GR, grimmy, i see than tht store has all i need so im going to try to find it, doh it is more expensive, but what dahack i can live of rice for 1 year n 6 months heh =:_] im also gonna prebuild an order just in case =:_] shipped by ups
thank you, really guys =:_]
also i very dumb question, vista ultimate can handle the 4 gigs??

That is, of course, gonna be an awesome machine! But I think you should same some on motherboard and graphics. SLI wont give you a lot more performance for the price you'll actually pay in graphic card, électricity and air conditionner (that thing is gonna heat like crazy).

Plus, the nvidia chipset is a bit slower than Intel 965 or 975, so you'll lose some of your speed increase that you got from SLI.

So I would suggest changing for a nice some nice motherboard with Intel 975 chipset and only buy 1 graphic card and eat something better than rice

Anyway you go, this mahine is gonna need some VERY serious cooling and it will be noisy (well, you probably could make it pretty silent and safe, but that would be very expensive)! Be sure to have a case with AT LEAST 2 x 120mm fan to have a good airflow (and make sure the one that blow the air out of the case close to the CPU is a powerful one). Forget about using the Intel stock fan, with all the heat you'll have in this case and all the money invested in this machine, I would buy a "top of the line" CPU cooler.