I would be pretty shocked to see Lodore get up anywhere close to 12,000 this year, the forcast peak is 6,600: http://www.usbr.gov/uc/water/crsp/cs/fgd.html
Places where I've seen people run into trouble in Lodore when there's water: hitting the rock in Winnie's (just cause they're not awake yet), sliding into the undercut cliff river right at the bottom of lower Disaster, going through the Birth Canal at the bottom of Triplet (those big rocks river right), or ending up sideways through Hell's. Most everything is just rock'n'roll waves - T up, push into it, and smile. If the Yampa is pumping as well, Split Mountain can pick up too. Moonshine is a fun, Grand-esque wave train as long as you don't hit the lateral on the left, SOB will toss you around if you don't keep your nose into things, Schoolboy seems to suck people into the wall river left (despite a whole lot of river to the right), and Inglesby has a hole in the center that flips people who are already thinking take-out and get caught off guard.
In addition to Echo and Jones, there's a cool hike up Winnie's grotto, as well as at Rippling Brook and Limestone. The hike at Wild Mountain is worth doing for the view if you're camped there. The side canyon at Pot Creek goes all the way up to Diamond Mountain, so just turn around when you get hungry/bored.
Have a blast - it's a great trip.