I just got a "pre-owned" (what happened to used to cars?

) 04 Ford Ranger. And I was curious if you guys have any advice on what to do with it before the month warranty or whatever is done. Do you think I should have a mechanic look it over or anything special like that? Money is tight after buying it, so I wouldn't really want to do anything that might be unnecessary. It has the "insert number" point inspection by the dealer also.
So far it runs great and it has a lot of addons for what we paid for it. 6 cd mp3 changer, dark tinted windows, custom grill, bed liner, and extended cab. It just has 56,000 miles on it, so it wasn't used that much. It was a leaned on, so it wasn't a gotten rid of by it's owner.
Overall, I like it. I never thought I would've gotten a Ford but I like it. I always had a thing against Fords, GMC and Dodge I was okay with, just Fords used to stroke me the wrong way. But this truck seems great so far, and from some reviews on the kelly bluebook, it should be just fine.