If you're going to do the 'run it into a wall' method, put a crap wheel in there first. You don't want to fix your fork by breaking a more expensive part (like a decent front wheel.) There are other methods, too, like putting the steerer in a vise, isolating the bent section with blocks, putting an 8-foot tube over it, and slowly yanking it back into position. Some damage from work-hardening will occur, but the jury's still out on how much. I've ridden many a bent-and-repaired fork at 200+lbs with no ill effects, and a friend races cyclocross on his bent and rebent crmo road fork.