It could be the fault of the front tire as much as it could be the head bearings. Might be a little cupped or out of balance somehow. It's done it on my bike too and every time the tire gets changed it goes away. Now, this info doesn't help your search for wrenches, but it may prevent you from doing work you don't have to.

Always remember to be yourself. Unless you suck. Then pretend to be someone else.