pluckyew, I could go on and on about this one but I would say look around at as many rv dealers as you can find to get a feel for your likes and dislikes. What you choose will depend greatly on your needs (i.e., a toy hauler like derwud has or a travel trailer like mine) and price. The Open Roads forum is a great place to start and is where I received much of the info I learned before purchasing (trailers, tow vehicles, hitches, brake controllers, etc):
Open Roads Forum
For example, we liked the Northwood brand of trailer's as they were one of the few 4 star rated trailers buy the RVAA for reliability and value. They are also 4 season trailers which means you can take them out pretty much any time of the year:
Northwood Mfg
Having said that, there are many other good brands as well. Now is the perfect time of the year to start looking as there will be many rv shows in the coming months with hefty discounts from mfr's (20-25% off list is typically a good deal).
When you begin to narrow your choices down I would recommend renting a trailer that is around the same weight and length so you don't have any surprises on your first trip after you purchase. This will also give you a feel for what options you may want to go with when you do decide to purchase.
In terms of equipment that I would recommend:
Prodigy brake controller from Tekonsha
Equalizer sway control/weight distributing hitch
Honda generators if you plan on camping away from it all
Don't hesitate to let me know if you have any questions.
Karl