We are planning on visiting in May next year and were planning on renting a vehicle from http://www.escapecampervans.com/ in LA and doing a trip through the Southwest. However, I am worried that I will get a bit sick of desert so we are considering getting there from Boulder (we are going there anyway) instead as it is about the same distance but we will see more trees on the way. And I like trees :-) Unfortunately I can't rent anything like this in Colorado so my next option is to get a vehicle, take a tent and go car camping (to keep the trip affordable and allow us to stay in the areas we want to). If I could, I would like a vehicle with a towball so we can put a bike rack on it. I have looked at http://www.adventurecamper.com/index.html but I don't need a vehicle that flash (but would need one big enough to put all our camping gear in - we are a family of four). Does anyone know of any other places that rent vehicles with towballs? We are planning on travelling for a month.