so we keep our desktop computer (a small HP) on the floor under our desk where you put your legs. it was still on and I was getting up and my leg bumped the tower, tipping it over onto the floor with a loud smack, which was hard wood. the screen went blank, then went to the hp start up screen, and won't move on. this is now accompanied by a ticking sound, which I have learned means a problem with the hdd head. is there any hope in recovering the info on the drive, short of sending it to a professional and having them do clean-room heroics at the cost of hundreds of dollars?