Mobo/CPU/Ram upgrade

APPROXIMATE PURCHASE DATE: next 2-3 weeks

SYSTEM USAGE FROM MOST TO LEAST IMPORTANT: games mostly and normal internet/word processing

PARTS NOT REQUIRED: I'm only replacing Mobo, CPU, Ram. Graphics card potentially in a few months (currently have a 8800gs that needs upgrading, but I'm doing this in steps due to budget limitations). I plan on re-using all my other parts, including a 450 W PS that I've had for the last two years.

PREFERRED WEBSITE(S) FOR PARTS: Like Newegg, not opposed to others.

PARTS PREFERENCES: No strict preference

OVERCLOCKING: Maybe

SLI OR CROSSFIRE: Maybe, definitely not required

MONITOR RESOLUTION: currently 1280x1024, preferrably have room to upgrade to a 22-24" monitor at a later date.

ADDITIONAL COMMENTS: I'm looking to spend $350-400 for just these three components. I have a rough idea of what to get, but looking for input if I can do better or if I have any issues with the size of my PSU, especially if i upgrade the graphics card in the upcoming months to something better (but within like a $100-150 price range. Current idea:

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

mobo
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or
http://www.newegg.com/Product/Product.aspx?Item=N82E168... (or something like these, I'm not super picky when it comes to a mobo)

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

Thanks!