We were in Orlando the first 2 weeks of July 2005. The heat was insane, the crowds were insane. Mornings were not really that bad but by 5pm at MK you could barely move and wait times were up to 180 min on the most popular rides. Soarin went up to 2 hrs wait. Sometimes the fastpasses were all gone by 1pm. It rained at some point every single day. The Orlando TV news reported MK reached capacity at 1pm (no new entries) on July 4. I have to say though, Disney did their absolute best to keep the crowd under control beyond what I expected and made sure the bathrooms were clean, all the air conditioners worked, and the concessions were stocked. They definately had the staffing on hand to handle the crowd. I expected hot grumpy cast members but never met a single one (was I just lucky?). If you really have no choice but to go at that time period just go prepared. We stayed off site and did not leave the park during the day, but throughout the day we made sure to get some air conditioned comfort when we needed it. Suncreen, raingear, water bottles are a must.