I find most 2 handed weapons are to slow, a monk will have a mob almost dead on a kill all floor before a drk can swing.
Many setups can work, blu is great for nyzul because head butt has a lot of potential. A thf is nice for pulls, but most jobs can pull it off just as well. Rdm for sleeps, brd for crowd control, or sch. I find nin a better tank, shouldn't have to explain why for nyzul. Any DD job works great, I have no idea why smallgod says two hand jobs aren't as good, but who listens to that idiot anyway. I've seen nyzul done with many setups, it's really nothing more than your average pt setup.
For lamps, just send everyone different directions, have them say when they've found one. When you get 3-4 lamps found, get an order going, when everyone has hit their lamp, they will all light up at the same time. If you have not found all the lamps, nothing will happen, so you know what to do from there... When the lamps do go on, they will go back off in about 5-10 seconds, but the few that continue to stay on, that means they were in the right spot in the order.
For example: I say - Ice, smallgod, moink. When I hit my lamp I'll say "/" in pt chat, or "on". Then small goes, does the same, then you. When they all turn back off, we say "off", but say smallgod's lamp is still on. That means smallgod will always be the second lamp to go in that order. So the correct order is - moink, smallgod, ice.
Edit** Have all your DD's sub ninja, you will be using sneak/invis many times.