This could be the one: 2002 Isuzu Trooper Ltd. Thoughts?

For those of you "following" my search for a first car (read: for those of you who are wondering when I'm gonna stop looking and buy something), I am now one step closer, possibly. I just spent the afternoon looking at and driving one of the vehicles on my short list, a 2002 Isuzu Trooper Limited. This truck has 130,000 miles on it, but it has just had a new transmission put in and new tires. It has a leather interior that is in fairly good shape, and a plethora of electronic toys, which, amazingly, all work perfectly. There was no major exterior damage, but the odd paint scuff or small dent was inevitable. It seemed to run and drive very well, and we are planning to take it to a mechanic to get it inspected sometime within the next week. If it all checks out (which I hope it does because I loved it), the price I would guess we could get the truck for is between $4200-$5000. Other than that, the only issue is fuel economy, because the damn thing only gets about 13 mpg. Does anyone have any knowledge of what problems these trucks are known to have (don't say tipping over) or if a car with such high mileage is, at any price or in any condition, a good idea? Any other thoughts are welcome.