I started this new thread for nooblet search purposes.
If you found a great second-hand fork but it has a short steerer tube and won't quite fit your frame, you need a low stack headset / stem combination. I'm running the Crank Brothers Iodine C AllMountain headset. I strongly suggest you get the SL version b/c the bearing steel is prone to surface rust. If you can't afford it, just get some "Krylon" rust inhibitor and spray on. Works like a charm.
Crank Brothers Directset (Opium, Sage, Cobalt, Iodine) headset: 20.56mm stack height.
Spank Spike DH/FR stem: 26mm stack height.