Gigabyte have really struck a winning combo of cooling efficiency and noise when it comes to their non reference coolers, absolute win.
+1 , the only problem I have with gigabyte is that they dont use reference PCB, which makes it difficult to find aftermarket coolers. And they dont offer the same warranty as the other companies that uses reference PCB like zotac, evga etc... otherwise i would actually choose gigabyte
I dont think its good to change the PCB unless its for special means, but changeing the cooler is ok, like the msi twin frozr , they atleast use the reference pcb and have extended warranty.
The extended warranty can be a life (and money) saver