The Q6600 will not bottleneck the GeForce GTX 460.
However, your power supply needs to be "large enough" to power it and the rest of your system.
Alright, thank you. Yeah, I also plan on buying this, http://www.newegg.com/Product/Product.aspx?Item=N82E16817703026.
It should be more than enough for what I need and I don't want to spend anymore than that for a power supply.