Definately got our money's worth in this thread, lots of goodness.
First off, let me once again say monsters are so far my absolute favorite thing about 4e. Orcs look awesome, and definitely have the "we don't die" niche going on. We got to lots of new minions so I'm sure the number crunchers will get on that.
Warlord powers look solid. I can definitely see a battle brain type warlord with a high int just sitting back telling his friends to fight, but giving them a nice extra bonus in the process.
The traps are very interesting, though I'm a bit confused by them. The blade trap says it starts when someone activates it, but it also has initiative. The other traps specifically mention they are activated by something, but that they don't act until initiative. Further, how long does a skill challenge take with a trap? I will say that in general traps do a hefty amount of damage, you definitely want to deal with them quick.
The solo soul gem trap looks neat, except for the fact that failing your skill challenge against it results in it blowing up for...piddly damage. I would much rather take the hit once instead of that thing continuously firing for several rounds, its almost a blessing if I fail!!