Conn, I'm confused as to how exactly wood is going to melt? Cheap plastic, yes, wood....maybe you're using something I'm not.
As for lights...go look at what you want and figure out what it's requirements for lighting/flow are. Like incysor suggests.
Also consider this: these tanks tend not to be very cheap. Your hardware, in the long run, is going to be a drop in the bucket. If you know what you want you may want to look at classifieds for people selling their setups, this is by far the cheapest way to go and the route I've taken to get my hardware when possible.
I'd check out the denver listing of craigslist and search for a local reefers forum to find stuff that way.
For evaporation, you could also just use a dripline tomaintain water levels. It's not perfect but it does cut down on tons of water maintence and both doesn't use electricty and won't fail and flood your tank. It sounds like you need to do more research. For me, from the time I decided I was going to build a tank to when I first filled it was over a year of research and waiting. Now it's known i take my time but I'd do more thinking about what you want.