Node.JS, Express & MongoDB :: Multiple Collections

Ok, using aesede's solution plus my own tinkering, I got it to render two collections. It could probably use some finessing but here's what I got:

// GLOBAL ARRAYS FOR STORING COLLECTION DATA
var collectionOne = [];
var collectionTwo = [];
app.get('/', function(req, res){
  MongoClient.connect("mongodb://localhost:27017/michael", function(err, db) {
    if(!err) {
      console.log("We are connected");
    }
    db.collection("collectionOne", function(err, collection) {
      collection.find().sort({order_num: 1}).toArray(function(err, result) {
        if (err) {
          throw err;
        } else {
          for (i=0; i<result.length; i++) {
            collectionOne[i] = result[i];
          }
        }
      });
      db.collection("collectionTwo", function(err, collection) {
        collection.find().sort({order_num: 1}).toArray(function(err, result) {
          if (err) {
            throw err;
          } else {
            for (i=0; i<result.length; i++) {
              collectionTwo[i] = result[i];
            }
          }
        });
      });
      // Thank you aesede!
      res.render('index.html', {
        collectionOne: collectionOne,
        collectionTwo: collectionTwo
      });
    });
  });
});

The only bug, per se, that I found, was that when Node restarted and I hit "refresh" in the browser, I didn't see any content being rendered in the HTML. However, any subsequent refresh showed the content consistently.