Where's my bottleneck?

[ww2golfer]

First post, basically I am interested in Skyrim and BF3 and to be able to run them at or near high. My system

AMD 960-T phenom x2 3.4 ghz
ATI 4890
4 gig Gskill ram cas latency 7
WD black 500 gig hard drive.
gigabyte 890FX (GA 890FXA-UD5)
Corsair obsidian 800d
xfx 750W psu

All this is played on a 23inch 1920 x 1080 screen.

I have around 400 to 500 dollars for an upgrade. Would it be better for a new mobo along with a i5 series processor and wait till HD7xxx comes out. The other option is grab a 6950 or 6970 or gtx 570 now and look at a new mobo and processor with bulldozer or Ivy bridge early to mid next year? I just cant really tell what is going to be holding me back the most.

Not

 

[gkay09]

HD 6950 for now and upgrade CPU + Mobo later on,....

 

[IH8U]

These would be a good upgrade over what you have now. A 6850, or a 6950 ($70 more) would be ideal.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150551
$160 XFX HD-685X-ZNFR Radeon HD 6850 1GB 256-bit GDDR5 PCI Express 2.1 x16 ($30 MIR, coupon for DeusEx, and Shogun)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819103727
$130 AMD Phenom II X4 965 Black Edition Deneb 3.4GHz 4 x 512KB L2 Cache 6MB L3 Cache

or this card instead

http://www.newegg.com/Product/Product.aspx?Item=N82E16814125385
$240 GIGABYTE GV-R695OC-1GD Radeon HD 6950 1GB 256-bit GDDR5 ($20 MIR, coupon for DeusEx)

Grab these later

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157262
$105 ASRock 970 EXTREME4 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX (SLi, or X-Fire)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231416
$54 G.SKILL Sniper 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600