thiers a couple out their these ones http://www.thatpetplace.com/pet/group/11452/product.web are ok but have 4 sets of 2 1 set turns on for day 2nd set turns on when set 1 turns off , third set turns on off with its own timer, then 4th set is always on. for the cost its pretty cool they make another called a zilla that is for reptiles that can some times be found for cheaper.
as for a total customizable 8 outlet set your looking for a reef controller like the aquacontroller jr. a very spendy but totally amazing contraption that can do almost anything for lighting like full sun cycle on and off and moon light cycle. with the upgrades it can control the temp turn a fan on if it gets to hot, do water changes, control a Co2 regulator with a timer or ph probe all for the low low price of like $300+
I have Corallife's timer. I wish it had additional separate daylight sockets (I don't even use the night time one). I've hooked up additonal timers to the other sockets with power strip liberators but it would be a lot nicer if I could program just the sockets separately, without the additional hardware. The daylight and night time sockets the Corallife has works such that when one is on the other is automatically off.