Mechanic said due to oil leak and possible power steering leak can't drive car

Yes, always get a second opinion, especially in a case where you have a mechanic looking at your vehicle who is not the usual one. You have a nearly 20-year-old vehicle. Even under the best of circumstances you can expect certain things to age and fail. As a result, it will take a critical look by a knowledgeable and skilled technician to determine if you have a failure occurring that is seen to be more of an emergency and safety issue versus something that's just wearing out a time and mileage. You can take the same car and have it evaluated by three different people and get three different opinions. What you want to make sure of is that you are not unsafe. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops