GASlick-
We bought our first RV last August.... and it is very much like buying a car. Be sure to negotiate that price down... just like a car deal. Ask for throw ins.... all they can do is say no.
I bought a brand new but leftover 2007 model. they were anxious to move it. List price was $23,600 and i bought it for $16,300.
Take into account that you will need to also purchase the hitch, trailer brake package..... don't cheap out on this. A good package should cost about $880 or so. There are cheaper ones but you get what you pay for in this case.
We started out looking at used but for the difference in price it wasn't worth it. A caution about used RVs.... be wary of cigarette smoke. Sniff everything to see if it embedded with smoke. A friend of mine actually cautioned me on this and I laughed... but he was correct.
i bought a 27 foot with two bunks, a huge dining/living room slide out, and a queen bed in a separate room. Here's a link to get an idea:
http://www.campingworldofcharleston.com/Home/InventorySearchResults/InventoryDetails/tabid/3843/invid/7244/Default.aspx