I'm going to go against what others are saying and say skip the 2600k and P67 mobo. Going from a 1st gen i5 to a 2nd gen i7 I don't think you will see enough performance improvement for the cost. Better to wait a few months for Ivy Bridge and Bulldozer and pick whichever of those 2 performs better.
I noticed you said you do graphics work. Might I suggest an IPS monitor? Dell, Asus, and HP have excellent 1920x1200 24" IPS monitors for between $400-500. Or you could save a bit more and spring for a 2560x1440 Dell 27" for about $750-800 on sale.