If you're too lazy like me to do it yourself, and yet tight on the money - do what I do...

spend the $25 to get the oil change and full inspection... then take the estimate on necessary work (like flushing fluids and replacing worn belts) to a reputable local auto shop who will do it for a fraction of the cost...

oh and change the air filters yourself - they're a piece of cake... I was replacing my air filter in the parking lot of my condo, and my neighbor (who is an ER doctor) was amazed... he had no freaking clue how to replace the air filter.