Need some help for an oldtimer's build

Hi Everyone,

My power supply died the other night from my 3 year old Sonata so I figured it’s time to put the old rig to rest. I want to upgrade my PC for some gaming but don’t want to break the bank. My processor/motherboard choice is really got me stumped, since things have changed a lot in the past few years.

What I was initially thinking about doing was getting an E7200 an over clocking it. If this were my option, what MB could I choose to include some decent crossfire action with 2x4850's? Would this CPU limit me?

Second choice would be to go for the E8400 and over clock a bit, but then my dilemma is the differenced from the p45 board vs. the x38/48. After reading some reviews I see that the x48 does have better performance over the p45.

Sorry for the long run off but I’m really stuck on the Mb and CPU. My first thought was to just get the E7200 and upgrade the CPU later if I could. Also, what do you think about re-suing the Sonata case, sticking the new PSU in? I really like the design and would hate to see it go.

Any help would really be appreciated.

Current build idea:


MOTHERBOARD
??
CPU
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115037
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115052
MEMORY
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145043
HARD DRIVE
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136073
GRAPHICS CARD
http://www.newegg.com/Product/Product.aspx?Item=N82E16814121253
POWER SUPPLY
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703005