I would thing more like 3.6Ghz with ease, 4Ghz if you try hard... Thats a high wattage processor, and if you want to get it much higher than 4Ghz you will need at the very least a good water cooling loop. but I could be wrong...
Either way, I've bought it now and shall enjoy the overclocking challenge. Wish me luck
And as for mod progress, I've done nothing today. I'm hoping to pop down to the warehouse tomorrow to get those marble pieces I mentioned, and I'm waiting for my rotary tool to arrive before I continue with any cutting work. I realised that I forgot to cut the hole for the 8pin ATX, so I'll have to do that in addition to the cutting I already have to do.
I'll probably pick up some acrylic soon to start work on the shroud, and I've decided against putting connecting the front panel audio since the EP45T-USB3P has the connectors at the back of the board which would ruin my neat cabling.