Dragon Orb 3 isn't THAT bad...but there are MANY MANY heatsinks that are:
1) lighter
2) better performing
3) more efficient
or
4) all of the above
The orb design is an old and inefficient design, lacking surface area, and once you combine that with copper, all you get is a really heavy (640 grams!) and inefficient design. At 640 grams, it's heavier than a Glaciator II, which easily outperforms it with a much quieter fan. If you want a 6 lug mount, get an AX7, which also offers better cooling at quieter levels and offers room to grow if you want to go all out loud. If you want a lighter heatsink, go for an Arkua AlCu combo, or one of the many skived options that are available. If you want something that's BIG BIG that has thermal capacity to spare, keeping the speed of the rise of temperature down if the fan dies, go for a Swiftech MCX462.
Hrm...that's about the only reason I can think of for anyone wanting a DOrb 3: if you seriously want pure thermal capacity as a saftey mechanism on a socket 370 board or a socket A board that doesn't fit a Swiftech. And even then, something like an MCXC370 might do the job as well or better in a dead fan situation.
No, I don't feel a need to defend Thermaltake's products, but I really hate statements like "Orbs suck!" My last heatsinks have been, in order: a Global WIN TAK68 @ ~3000 RPM, a Dr. Thermal TI-V77L @ 3000 RPM, a Glaciator I @ ~3000 RPM, a Swiftech MCXC370 w/ Zalman 92mm @ ~2000 RPM, a Zalman 3100 w/ 2 x Zalman 92mm @ ~2000 RPM, a Mini Copper Orb, a Thermoengine, a Taisol, a...small green heatsink that was terrible but kept my Celeron 400@500 at a decent temp...
Man, I need more heatsinks...