Thinking of getting into the TT market

I am a total newbie,

I am thinking of buying my first travel trailer... my wife and kids are sick of the tent. I have been looking at a Jayco Swift SLX, but I don't know the first thing about RV's.... and don't want to get scammed by dealers.

What do I need in terms of accessories when buying the trailer?

Is the Jayco Swift SLX a good model?

Also, in Denver this weekend there is a RV show - Are these the best place to buy a TT?

Thanks,

DSL70