Congrats!
We are working on the same thing.

The truck gets paid off in Jan. and I am paying off credit cards slowly but surely. My question is, what do you pay off first? Lowest amount or highest interest?

I've heard different people say different things. It seems easier to pay off the smallest amounts first, then you free up more cards quicker. If you pay off higher interest first, you may be paying off more money but it just seems like forever before you even get one card off the list.
I would like to be debt free in time for our next vacation, which is scheduled for Oct. 2012. I am planning a cash only vacation and if we work hard enough, we can make it.