Anyone heard of a "Dawk to Dusk" light timer?

[Rikko]

Multiple timers is probably the way to go. Those wavemaker powerbars IMO are rubbish.

Heavy duty outdoor (ie. grounded) timers can be had from HD for around 8 bucks. That's all I use for my various tanks. The only complaint I have about those is that you can't precisely set the time (you get to within 15 mins accuracy but such is the way with analog timers). I recall seeing a post where someone saw digital timers at Superstore for a good price.. Might be worth a look if you really want precision.
Personally, if my main T5s shut off at 11:04 instead of 10:59 I'm not too worried.