And seriously, if you have a credit card, then buy from NewEgg. Way cheaper. Also Id go for the 955 black since it will only be 20 bucks more from NewEgg and will last you longer than the dual core. Its what I use. What you save on the GPU (usually around 179-199 for the 560 at NewwEgg) you can put into a better CPU.
Just make sure your motherboard isn't bottlenecking anything.