Need help picking parts - $1500 budget build

APPROXIMATE PURCHASE DATE: Mid-late june

BUDGET RANGE: $1500

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming (MW2, fallout, prototype..etc), I also want to be able to run skype video and a movie file at the same time, when i do this now on my core 2 duo (2.0ghz) laptop, everything lags and the processor can't keep up

PARTS NOT REQUIRED: keyboard, mouse, speakers

PREFERRED WEBSITE(S) FOR PARTS: newegg, amazon, microcenter
COUNTRY OF ORIGIN: ks, US

PARTS PREFERENCES: I prefer intel processors, ati gpu

OVERCLOCKING: Depending on how cool i can keep the cpu, i heard alot of the new i processors from intel can be overclocked near 4ghz which would be awesome as long as they dont get too hot

SLI OR CROSSFIRE: Not now, but in the future

MONITOR RESOLUTION: 1920x1080

ADDITIONAL COMMENTS: Never built a pc in my life, but you have to start somewhere.

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i7-930 bloomfield $290
For the processor i was thinking an i7 930, but alot of people said if my greatest concern is gaming i can save alot of money by sticking with an i5 instead

HIS hd 5850 $300
I dont know too much about gpu brands.

Corsair 750W psu $109 ($89 after rebate)

A-DATA ddr3 1600 $165

COOLER MASTER mid-tower $70
looks nice and well ventilated?

ACER 21.5'' 1080p $150

So that brings me to $1064 leaving me in need of a motherboard and HDD. I would like a motherboard that will accept my gpu and another 1 in the future if possible, and also have sata 6gb/s for a faster hdd since i dont have money for an ssd right now.

Thanks for your help.