Actually, it's not as big as you would think from the pictures. It's probably equivalent to a 3/16" thick piece with the area of the case. If the acrylic weren't there, and I didn't already have my mind set on a heatsink fan, then I would reconsider. Here's a shot of the internals. No heatpipes can be routed to the bottom alu piece, there's simply no room. No heatpipes can be routed to the top pieces because of the logistics of assembly. Also, Waynio, I don't think heat will be a big of an issue as people think. The CPU shouldn't be stressed terribly since any HD playback will be hardware accelerated from the onboard GPU. If anything, I'm worried about the northbridge getting hot (which is why I'm looking for an alternative northbridge heatsink, one that is preferably copper). Also, the case itself should add quite a bit of thermal mass, acting as one big heatsink if the temperatures get well above ambient. Let me set something straight here. I'm going to go through, step by step, as to how this thing will be put together, with pictures! Step 1: Assemble blu-ray drive with removable mounts. Step 2: Attach said assembly to bottom aluminum piece. Step 3: Attach bottom acrylic piece to assembly. Step 4: Install motherboard. Step 5: Assemble frontplate. Step 6: Add side aluminum pieces to frontplate. Step 7: Assemble bottom pieces. Step 8: Assemble top aluminum pieces, top acrylic piece, spacers, and hard drive / hard drive mount. Step 9: Assemble top piece. Step 10: Motherboard plate. Done!