Without question the Tagan BZ line LOOKS cool.  But its beauty is only skin deep.  I recently purchased a BZ-800 from newegg.  Included in the box is every item you can imagine, including gloves!  
 
My entire system is water cooled including the video card (Specs at bottom).  The video cards cooler was installed at the factory.  The only fan in the system is in the PSU and it is rather quite.
 
So whats the problem?  As load (not necessarily framerate) increases on my Nvida 8800GTX I get increasing whining/buzzing from the powersupply.  So basicly, putting ANY stress on the video card produces this noise.  After RMAing the first one and having the identical problem with the second, I switched out the power supply with a RocketFish from Best Buy 700w.
 
Dead Quite. - 100w less than the TAGAN!!!
 
Same apps, computer, and hardware.  The only change was the PSU.  So I went the TAGANs forum and starting asking questions.  (Thread included: http://www.tagan.com/forum/showthread.php?t=418)  They didnt seem to believe or care that their PSU was doing this and suggested switching out video cards, turning on/off Vsync or upgrading PSUs to a higher wattage version.
 
Wait a minute... their PSU purports to be SLI capable Nvidia ready, and it cant handle one video card without screaming uncle.  Heaven forbid I put in a second card and/or a physicx card!!  Why in the world would I buy another one of their products if they cannot get this one fixed!!!
 
My conclusion is that their product although good looking, is flawed... their support is lacking.  I demand solutions from companies that represents the value of the product.
 
 
I would not recommend this product if you have a high end NVIDIA card.
 
Nothing OC'd yet.
 
Koolance EXOS2
Asus Striker Extreme
4GB 8500  DDR2 OCZ RAM
Intel E6400
BFG 8800GTX Water cooled
Dual Western Digital Raptor X 10k/Raid 0
Philips CDRW