Suicide hub? As in a freewheel conversion with a BB lockring, loctite, and prayer/hope/sacrifices to the cycling deities? I tried that on a Fuji Sport 12 conversion w/o success - cog would spin off 1/2 way down the block. Bought a wheel with a flip/flop hub (set up 42x16 fixed or 42x18 ss) from the LBS and couldn't be happier with it. I ride with front and rear brakes, 'cause I'm a wuss and want to be sure I can STOP when one of Northern Virginia's idiot drivers tries to make me into road kill. I stopped using the fixie for commuting when my left knee started bothering me - it's much better now, even after a century 2 days ago, so I may start using the fixie more often. May add fenders so it's better for messy weather. I love not having derailluers to clean and the quiet of a simple drivetrain!

I'd take a second look at your chain, though - looks a little loose in the picture.