We were there Monday and Tuesday. Both days had about equal crowds. Wait times for the bulk of the day were as follows (varied depending on if a parade was running at the time):
Space Mountain: 50-60 minutes
Matterhorn: 15-25 minutes
Pirates: 10-25 minutes
Indy: 45-70 minutes
Haunted Mansion: 15-20 minutes
Thunder Mtn RR: 15-25 minutes
Splash: 70 mins (according to the sign, we didn't actually go on it though so I can't say if that was accurate)
We went in at 8am on Tuesday and that was awesome... it was so empty, even though it was an early entry day. We rode Space Mountain twice around the 8:30-8:45 mark and only waited about 6 or 7 minutes each time (the sign said 15 minutes). The crowds really picked up around 10am.