Maximum Motorsports Panhard bar, look around the corral, Arts parts had one shipped to me for $299, which was awesome.
On the balljoints, you can use steeda x2's to improve handling by correcting the suspension geometry, or lower the car slightly more without any further loss in geometry in the arms, which helps combat camber loss.
If you have tie rods giving up, might as well go bumpsteer kit.
Chris Wynne - NASA AZ Region Racing Nut
2011 GT: Yellow Tri-Blaze, 6MT, 3.73's, all the options sans a glass roof.