New system build(first)

APPROXIMATE PURCHASE DATE: Next 2-3 months buys parts at a time
SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: Gaming

PARTS NOT REQUIRED: Monitors,Case,Power supply

PREFERRED WEBSITE(S) FOR PARTS: Newegg.com
PARTS PREFERENCES:
OVERCLOCKING: Maybe
SLI OR CROSSFIRE: Eventually

MONITOR RESOLUTION: 1920x1200

ADDITIONAL COMMENTS: Price range about 800-1000$

There is no point going i7 for gaming if you use such a slow graphics card (relative to what the core i7 can keep up with). I would drop down to a core i5 and put the extra money into a 5850

core i5 2.66GHz
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16819115215&Tpk=i5][/url]

Radeon 5850
[url=http://www.newegg.com/Product/Product.aspx?Item=N82E16814102857&cm_re=5850-_-14-102-857-_-Product][/url]

My changes would cost $25 more but would outperform the core i7/5770 by a lot.

^+1 to enzo and jbakerlent. Both did a good job. But enzo is right, an i5 and 5850 is a better deal compared to i7 860 and 5770
BTW, a quick neweeg search found me a CPU+RAM combo.

CPU+ RAM: (enzo matrix's suggestion + jbakerlent suggested RAM)
http://www.newegg.com/Product/Comb [...] mbo.286133
i5-750+OCZ Platinum 4GB (2 x 2GB) DDR3 1333 Model - OCZ3G1333LV4GK

Graphic Card: HD 5850 like what enzo suggested
http://www.newegg.com/Product/Prod [...] -_-Product

Hard Disk: Same model as jbakerlent suggested but if you think you need more space go for this one(its 1 TB):
http://www.newegg.com/Product/Prod [...] 6822152185