Building a computer on a $1200 budget?

APPROXIMATE PURCHASE DATE: By the end of the month

BUDGET RANGE: $1000-1200

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: An all around build but mainly for gaming

PARTS NOT REQUIRED: Reusing a monitor (1280x720). I’d like to focus on just the tower so everything else like mouse, speakers, etc... is out. No need to suggest them unless it’s a really great deal.

PREFERRED WEBSITE(S) FOR PARTS: Newegg is fine with me. As long as shipping isn’t ridiculous. I’m in US btw.

PARTS PREFERENCES: MoBo- Gigabyte, Case- Antec, and Graphics Card- ATI

OVERCLOCKING: Yes SLI OR CROSSFIRE: Maybe

MONITOR RESOLUTION: 1280x1024

ADDITIONAL COMMENTS: I’m not building this for myself, it’s for my cousin. This is actually my second time building a computer so I’m still a novice at this   but I knew she could get a better one if we did it this way. She insists on keeping her monitor (don’t ask why).

Here are a few links of things I’ve been looking at:

Intel Core i7:

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Motherboard/OS:

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Case/Power Supply:

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

CD/DVD Burner:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Memory:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

None of these are set in stone btw.

Thank you for your time!