Just a few things. Alright, TEN THOUSAND. JK. It becomes natural after a while, like rock climbing or tying shoe laces. I would suggest that the beer be laid sideways in the plastic tubs (as opposed to standing up). You can fit more in the tubs then. I like to use large lexan containers on jobs of that type. If you don't have lexans at your disposal anything that doesn't leak will work. If the event is at a rented hall it may be possible that they have Ice Caddies. Those are great too. And remember, Beer first, Ice second! If you have room you should think about a back bar. Two 6 or 8 foot tables with cloths, one for the bar and one for the back bar should be fine. Use pins or clips to hold up the cloths on the back side. With the tubs underneath you now have a makeshift reach in. With 8 foot tables it may be possible to squeeze 3 behind the stick. With a 6 footI wouldn't go more than two unless you put two tables together. (When the guest list is this large, if no one has done so yet, find out the size of the space for the event and draw a nice, simple diagram. Doesn't need to be fancy.) Make sure you have tape to tame the power cords, and lots of power cords. I've been caught short before and it sucks to make a run to the hardware store. Ice Scoops and Garbage Cans are a must. You may also want to print out recipes for the bartenders since they're rookies. Size the recipes accordingly and make it easy for them to measure out the amount of booze going into the blenders. Explaining that it's no fun to have a guest throw up on you may be good motivation to use some reason. Ice. I've always found it a good rule of thumb to have a pound of ice per person and keep it in a separate cooler that's only for ice. If you live in a warm climate you may want to up that 10-15%. (It still kinda cool where I live) If the crowd has heavy drinkers you may want to go higher. Remember, some of the ice will be needed to chill the beer and wine. Lastly, have the bartenders display the available products. Just one of each on top of the bar should suffice. If you make a big bar... you get it. It eliminates a lot of the questions people may have (e.g. What kinda beer ya got?), speeds up the line, and in general makes life easier on everybody. I'm sure there's a million things I'm leaving out, but with all the info from everyone else and my two cents, I'm sure you'll do okay. Once again, best of luck!