new guy boat maintenance question?

[oteps]

I have a 86? v20 with a 175 hp black max outboard. I just got it running good and took it out last weekend. I am going for a weekend fishing trip aug 11-12-13.
I have a water pressure gauge, new fuel lines, filter, new battery and I am rewiring everything right now. Bilge pump works.
Is there a way to grease the steering cable?
I am new to boats. Is there any other things I should do? I would rather do it now instead of on the water.