glad that worked for ya!
looks like it went from 3.4 to 4.2GHz. with better cooling and a manual OC you could probably get it to 4.4-4.5.
also, its time to learn how to OC your gpu...
edit: antipunt, did you get the reeven justice? if so you should be able to get that chip to at least 4.5GHz by manually overclocking. the gigabyte software will make OCing easier but it tends to run the voltage higher that it needs to be for the lower OC clock speeds. might want to check the intel threads or do some googling for OC setting suggestions. i'd put money on it that you could get a few hundred more MHz!
I did get the ReEven Justice. You're right in that it looks like I can push my rig even further (either CPU/GPU or both). EasyTune6 has a third option which goes up to 4.47 ghz. I only went to "level 2" 4.22GHZ cause I didn't want to 'push my luck' so to speak and have my rig melt into a puddle or something (I have a vivid imagination)
EasyTune6 also has options for GPU OC-ing, but like you said, it'll require manual tweaking and some education. Last time I tried overclocking my GPU, it seemed to involve a lot of trial and error, which was a bit time consuming though