Well, my 3770K is currently sitting on my workbench waiting to be integrated into my new system. So I can't tell you anything firsthand, but I had a lot of help on this forum with choosing components. The CPU cooler was the last item I purchased, and the advice I got here was great because I had painted myself into a corner by purchasing high-profile RAM. Several of the coolers I was initially looking at would have blocked the first RAM slot.
I don't know if you've picked your RAM yet, but if you're considering chips with larger heat spreaders, then just don't make the same mistake I did - measure everything first and then see if the coolers you're interested in will interfere with your PSU/RAM/case cover.
You can read the discussion on my system here.
. . or I can just give you the bullet points.
In the end I chose the Prolimatech Armageddon - the slimmest cooler I could find that was close to the top of SPCR's "Recommended" table.
Another one that was recommended to me was the ThermalRight Macho, which has a unique off-center design that causes the HSF assembly to only extend 25mm towards the memory slots.
Have you picked out your other components yet? Do you have more details about your case or motherboard choices?
Also, what is the intended use of the machine - HT, gaming, media work?