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Another thing is to check things such as ball joints, ect.
Jack up the front of your car and put on jackstands so that the front wheels are off of the ground. Then, with keys in ignition, turn whell 1/4 to3/4 turn then take keys out of ignition and turn steering wheel back so that the steering wheel locks in place. This may take a couple of tries, but the goal is to get your front tires pointing relatively straight ahead. (You want you steering wheel locked so that when you check for excessive play, you are not fooled by the wheels moving.)
Right, now try to wiggle the each wheel side to side and up and down. There shouldn't be any clunking or feeling like something is slipping when you do this. You can also get in there with a prybar and see if there is excessive play in the control arm points of pivot and attachment.
I would not be surprised if it was your balljoints starting to go. If the car gives a pulsing feeling, then it is probably a caliper binding or a rotor warped, but if it feels like the car is trying to do a little hop, then I would suspect the ball joints.