... Most the time I've found that you can get a new truck for not a whole lot more than a couple year old truck.
That's been my experience too, and why I usually end up buying new. Also, do you plan to finance or pay cash? If you must finance, then you usually can get a good interest rate on new vehicles. Also, this is the time of year you can get great deals on 2013s. They want to get them off the lot before they become 1 year old ... as well, winter is usually the slow season for dealerships ... so they are more willing to negotiate.
I would only buy used if I had the cash and make a "low ball" offer.
BTW, you still don't say the model and if it's 4x4 or 2x4? Or if it's a Regular Cab, Super Cab or Super Crew. Also if it has the Tow Package or what other options it has. These can make a big difference in price.
I'm in Canada (and we pay about 10-15% more than the same vehicle in the US). Ford Canada is advertising brand new 2013 XLT Regular Cabs with 2wd for about C$24,500.
Add 4wd, Super Cab, Locking rear differential, and you'll add nearly $10K to the price. And various options can quickly bring that up more.
I suggest getting a COMPLETE list of options and then compare it to a new Ford at their Website. You may find you are okay with a lower model (XL or SLT) and pay even less or get a higher model for not much more ... especially when you consider the low interest rate Ford Credit is offering on new trucks.