Overclocking available?

[tllim]

I measured the laptop fan, it is just under 20mm square. Does anyone know how tall the acrylic enclosure is? I might also put some fans on the side, totally out of the way of the board. I think there's a bit of room to all edges of the board, I could fit some fans in the outer perimeter of the case. 

I will also be cautious about overclocking, I'd at least like to get it up to 1.5Ghz if I can.

Not sure about the dimensions of the acrylic case --- there was backlash on the Kickstarter page earlier this week when they posted an update that had a picture of the new (much less attractive) AVAA Studios case. 

It might be tough planning for components when you don't know the exact clearance. Even if you study the pictures and calculate every dimension (like I have done in the past...), there's inevitably some little issue that can mess with your meticulous planning. That's why I'll wait until I have the hardware in my hands before I plan for components. Just my two cents!

You could also go this route: http://hackaday.com/2013/07/20/water-coo...pberry-pi/

The sandwich type acrylic case has around 20-22mm clearance (assume not install adapter on top), this should have enough clearance for ma good heatsink. The case height between two acrylic plate is 40mm.
P/S: I don't think water cool is needed :-)