How high could I OC 3770k on this build?

Hardware Hub Overclocking
1

http://pcpartpicker.com/p/wLIQ

How high do you think I could go without having to worry about temps and other problems?

2

Its a silicon lottery when overclocking but I would think that you would be able to get to 4.0Ghz + with no problem because of that H100i 

3

I have the same CPU with an Asus Sabertooth Z77 MoBo and an H100 (no i) and i run stable and cool at 4.6GHz.  You should be able to do at least that!

4

At least 4.5-4.6 GHz, if your lucky maybe 4.8GHz+