I have 2 blorbs on my Voodoo5, is it better then the stock HSF? Yes, the blorbs technically are better. Are they the best cooling solution? No. I put the 2 blorbs on because it was running pretty hot, and just wanted to cool it off a bit, not because I was looking for a big overclock or anything. Oh yeah, and because it looks really cool
Now if you looking to do the same thing that I did, sure, go for the blorbs, but if you looking to overclock and that sorta thing, I would get some cheap Socket7 HSF's at like Radio Shack, and just pop them on there.