We just did the Kautz last weekend, 15th - 16th and it was a blast, we were the only people on the route all day and when we summitted we heard stories of 1 1/2 hour waits on the Emmons, so glad we didn't have to wait there.
We started hiking from Paradise around 9AM and it took us 8-9 hours to get to our camp right around 10,900 feet and there were great camp sites at the top of the Turtle. There is running water up there, but fill up at night as all the little streams freeze over at night and make it a bitch to fill up before the climb.
To get to the ice chute there is actually a rappel sling that allows you to avoid going all the way up to Camp Hazard and below the Ice Cliff. It is just below a red rock outcropping, I think it's the last one you can see before the Ice Cliffs and there's actually a climbers trail right to it. You can also come back this way with just a little easy climbing. It saves a lot of time and effort.
From here you cross the run-out chute for the Ice Cliffs very quickly and get to the first of the ice chutes (get up there early enough so you can scope it out the day before). The ice was a lot longer and more water ice than we expected. Although the actual water ice is only about 100-feet it's probably about 2 sections of 300 ft. ice that you'll want to protect to feel comfortable.
We simul-climbed it with 3 ice screws, but were wishing we had a lot more and we were all novices on ice. After you get above the second ice section it's pretty simple to get up top. Crevasses were minimal and route finding was simple. We got up at 1AM and reached the summit right around 10AM.
Getting down was another story as the ice chutes did not soften up enough to step down, so we had to do mulitple rappels to get through it. Be prepared for this and be prepared to leave gear. There is gear on the route, but I'm sure it gets grabbed pretty quickly, but keep your eyes open. One post-thought that we had is that it would have been great to haul another rope and stash it at the top of the ice and then be able to do a full length rappel down. It would have made it much easier and quicker.
Once you get back to camp, prepare for glissade heaven, about 2000' of vertical can be accomplished just by sitting on your butt. I'm sure it will be a fair bit more ice since you're going in mid August.
Good luck and if you want you can check out our pics here:
http://www.flickr.com/photos/fixiewrek/sets/624120/