Duo chrager and power supply

Hi,
I'm on the market for new charger and power supply. I already have few 50W chargers connected to laptop power supplies. They worked great till now. Main advantage is that they are very quiet as they dont need any Fan. Main issue is that now I have many lipos so I need faster charging time.

As for new duo charger this looks like a nice option:
http://www.ebay.com/itm/IMAX-B6-Duo-...item4aadfa8595
And power supply:
http://www.rc-monster.com/proddetail...fn92134&cat=19
Please comment if you have other good option, I want some strong charger (Duo is better) and power supply that will be quiet enough so my wife will not ... as I charge my batteries a night before racing/practicing while all are sleeping.