Just because your heatsink is huge doesn't mean it has to look like a plain old copper square.  Take the new Beetle from Thermaltake, as reviewed by Overclockers Cafe.  This heatsink would look great in the middle of a fully lit, fully modded case ... especially if you went with a plush theme!

"When I first saw the new Thermaltake Beetle Cooler, I thought of beetles all right. Not the four winged type that eat roses but more of the 72' or 73' variety. This thing is so big it looks like the rear tail lamp off a Volkswagen Beetle. Also like the VW type Beetle, the Tt Beetle has a look that regardless of how much it appeals to you aesthetically, it pulls at your curiosity and whispers fun in ear."

Here are some more Cases & Cooling reviews from around the web:

   CASES & COOLING

• The Future of Air-Cooling @ CoolTechZone
  
• Ultra Products Titanium Finish Fans @ PimpRig Review
  
• Speeze EEA67B4 VultureSpin III @ A1 Electronics
  

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Building A Silent Server/HTPC @ OCModShop

Jetart JACSH1 VGA Cooler @ OVerclockers Online

ArctiClean @ A True Review