I've started using these, which are half-timed, half-untimed: http://www.amazon.com/Woods-5522575-Outlet-Power-Strip/dp/B001DEF7SM/ref=sr_1_1?ie=UTF8&s=hi&qid=1259516040&sr=8-1 What's not shown in that picture is the cover for the timer mechanism, which helps to keep dust, fish food, water, etc, out of it. I really like being able to control multiple tanks (on the 4 timer-switched outlets) from one strip, and having the non-switched outlets on the same strip is convenient. I've not had any significant noise from the ones I've had for 2 years, although YMMV. _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member