I haven't heard of cases of that in recent years so Maybe all the bad ones are gone?
Plus, can't you just fine a regular power supply with the same power rating and do a bit of retro fitting to get it going?
I've had this dualie G4 for a good 3 years, it was used endlessly before me so I think that solves the case with this one. I also have a quicksilver that came from Mike and it's still working just fine.