Anyone who is deciding to do an RV type life needs to watch the movie RV with Robin Williams.
There is some pretty ridiculous stuff in that movie, but some of it is sooo true. :D
I have done a lot of RVing and camping and solar chargers are the ticket for sure.
The intellipower converter units are pretty much a must if the unit doesn't have something comparable, as are a bank of good 6v deep cycle batteries and not the 12v POS batteries that usually come with RV's these days.
Also like already mentioned, the tires that come on new rigs usually suck and need replaced right from the get go.