We got the Be Quiet PSU's in about two months ago we was the first UK retailer to sell the Tagan before all the other companies jumped on the band wagon.
I can not really fault the Tagan its good psu reliable stable and quiet but the Be Quiet beats it hands down on a comparison test by top German magazine the Be Quiet came first against Coolergiant Enermax EG701AX-VH , Revoltec Star Series Cromas II , Atec truepower 2.0, Acbell , Raptox , Tagan , Jou Jye , Qtechnology and the Coba.
So anyone going for a top end PSU un-watercooled i would reccommend the Be Quiet.
http://www.leftclicks.co.uk/userimgs/psu/be_quiet_psu.htm