Help me choose between two very similar CPUs

I am planning on building a new gaming rig and have started picking up parts one by one. Just yesterday I picked up a define r4 with windowed side panel for only $80 at ncix.

The choices I am torn between are i7 2700k and i7 3770k.

I am going to buy them from the micro center and the price difference is marginal with 3770k being only $10 more expensive. The catch is that the 3770k can be bundled with a motherboard of my choice for an additional $40 off while the 2700k can't.

I am planning on overclocking the CPU at a stable temperature with water cooling.

I will probably buy the seasonic 750w gold fully modular psu when it goes on sale again for $100 on newegg.

I will be using the sapphire 6850(which I already have from my old build) until I can get a good deal on an evga card.

I will run a quad channel memory with 4x 4gb memory with a slight chance of possibly going dual channel 2x 8gb. (Which would be better, if there is a difference at all?)

As for the hard drive, I will use a 7200 rpm hdd, with no plan on throwing in a ssd in the near future.

I don't use any resource intensive programs like video, photo, audio editing, etc. I do use virtual machines and I try to run as many vms as my computer can handle and sometimes I leave it running for days.

I tried providing as much information as I can. I hope it will provide information needed for you guys to determine which CPU would be better suited for me. Thanks everyone, and I will select a best answer once my question is answered.