Going out of town... What do?

So I've been out of town while running my set-up on multiple occasions. However, I am going to be going out of town for at least 4-5 nights at a time for the next 3 weeks. I will be able to check up on them maybe once a week. Which sucks, but it kind of has to be done.

Right now, I have 6 plants in Veg in my box. All running under a low watter of ~120 watts CFL. The lights are currently sitting 2-3" above the plants. They are on 24/7.

So here is what I plan to do. Before I go out of town, I plan to give them all a good water. and to raise the lights a few inches. I also plant to put the llights on an 18/6 schedule.

Does anyone know if this will be a bad idea? Anything else I should concern myself with doing before I leave? I don't want to come back to all my beautiful little girls dead in their house.

Who else has a routine they follow when leaving to go out of town? Any advice/tips are appreciated!!

when i go on vacation i soak the 3 gallon pots and the lights go from a 1000hps to a pair of 26w cfl's. i've left them 8 days unattended last time. got back home just in time, they were bone dry and it added a few weeks flowering time but they were alive and healthy. i'd like to set something else up because of the extended flowering period and i think it might of affected finial yeild too. hope this helps.