Thank you all for your suggestions and recommendations. When I started looking for an used Pathfinder, I ended up settling on the 2001 model because of the better powerplant (240hp vs 170 for the 2000 model) and timing chain (vs the timing belt for the previous model years)
Since I am at 102K miles right now, I am going to try and get the following done:
1. Fluid changes
2. Belt changes (the dealership quoted 149.95 for changing them, but I am thinking about changing them myself based on what I have seen on this forum)
3. Spark plugs, wires and distributor cap
-R