I've also been poring over the army lists to see what I can come up with for the Feast of Blades event coming up next month. Seeing as the actual special rules for the Thousand Sons aren't going to be available for quite some time, I'm thinking that there's one thing that really makes them stand out, and that's the use of Sorcerers. Considering running a trio of 'em for the tournament, two in power armour attached to the tac squads, and one in terminator armour to accompany squad Phosis into battle.
Enter Malagor Auramagma! I had a few leftover terminator bits from the earlier squad build, and kitted him out with a curved axe-head that hadn't been included in the unit build previously, as well as one of the bird-style helmets to help him stand out. Quite looking forward to painting him soon (assuming Real Life(tm) lets up a bit)!