2000 Lexus ES 300 sterring wheel shakes

Thanks alot for your answer, I brought the car used so I was afraid I made the wrong choice I paid a very low price for the car so I assumed a few things would have to be adjusted being it has 92000 miles but I was told it was low for a lexus my neighbor has 220k on his and he says works perfectly amazing. Ok i'm getting my wheel balance tomorrow there doing the front wheel balance, is that alI need just the front? Im not to swift on cars so forgive me. And I will get some fog lights put in. When do you recommend timing belt change I was told 100k, and is it ok if I go to a side shop that works on lexus and toyotas? Because its half the cost. Any input would be great and thanks again if you have time to answer questions of mine