for what i believe your uses are, graphics and web design with some gaming, ivy bridge will have no or little difference in performance. a lot of enthusiasts like it for that "new car smell" with native support for USB3 and PCI 3.0 and 1600 RAM. but gen 3 sandy motherboards has those with either third party chipsets (usb3)and a ivy bridge CPU (pci 3.0).
though with a $600 budget for a cpu, mobo and ram you can get "all the bells and whistles" on an ivy bridge and know you have the latest tech.
ASRock Z77 Extreme4 $139.99http://www.newegg.com/Product/Product.aspx?Item=N82E16813157293
Intel Core i5-3550 $219.99http://www.newegg.com/Product/Product.aspx?Item=N82E16819116505
G.SKILL Ares Series 8GB $57.99http://www.newegg.com/Product/Product.aspx?Item=N82E16820231548