Keith,
I really don't know which way to go. I cand more easily understand how to get it going if I use the 16f88 since it has ADC, but I may run into bigger problems if I make the switch. I think i'll get one and try it.

The comparrators may be the way to go, I'm just ignorant about how to make them work. From what I get so far from the data sheet, portA.0-4 can be inputs for the comparators and A3 and A4 are the outputs? All of these pins are also used to drive an LCD, but the LCD will be off while checking for daylight, so I don't think that will be a problem. Also, it will only be checking every 10 minutes or so. I noticed in the dta sheet where it's talking about the comarator output, that it says it may use more power in sleep mode, this may be a problem if it's very much. (A few uA wont be a problem though).

In the future, I would like to add a low battery indicator so that should be considered as well on choosing the right chip for the job since the project is still in the design phases. From what I've read there though, is that the voltage can only be 5 volts, and the circuit uses a 9Volt battery, so there is a need for some extra circuitry there too it appears. Since I want to show the battery as "low" when it gets to about 6 volts.
ghoot