I just got back, too (in WDW 8/13 - 17) and I must have missed the unbelieveable crowds, too. We, of course, took advantage of FP, and I don't think we waited for more than 20 minutes for anything.
8/13 at EPCOT - FP Test Track, went on Soarin (10 min wait TOPS), did JIYI and SSE, then went around the countries Canada to Mexico. Did Universe of Energy (to rest) and then went back to World Showcase for dinner.
8/14 at MK - did not find the crowds bad at all. Went on Pirates, SpM and BTMRR, HM, then to Fantasyland and no wait was longer than 20 minutes (although some had 25 mins. posted). Continued around to Tommorrowland, which was a littel crowded, but used FP to eliminate waits.
8/15 at AK - FP for Everest, then did Dinoland (no on there AT ALL), then did some trails and FP safari. Walked right in to ITTBAB and saw the final FOTLK show after walking in 10 mins. before the start.
8/16 EPCOT & MK - we split the day and did the stuff we missed at each place. It was dreadfully hot, but not overly crowded.
8/17 at MGM - this was the only place I thought was really crowded, and it really had to do more with the shoddy layout of the park than the crowds. I waited about 20 minutes for Great Movie Ride at about 4:30 / 5:00 in the afternoon. Crowds grew to gargantuan size anytime the new stunt show let out, so I made sure I was already in a queue or doing something before the crowds surged.
Not that anyone on this board cares, but I went to USO on 8/12 and was able to get on all of the rides by 6 pm, going on a few twice or three times, and waited no longer than 25 minutes for anything.
There were a lot of people there, but my wait times were not too bad at all.