Hi,
Planning my own solo trip and using the easywdw May 2013 calendar, which you might find useful. I pasted the basic "recommended" for the parks, but his reasoning is expanded right after and can be accessed through the link.
Also, I am going to plug a seat on my shared Illuminations Fireworks cruise on the night of the 12th. There are six of us now and the cost is $40 for a reserved seat with the best view of Illuminations. (PM if interested and I can send details).
Cheers!
Roehl
http://www.easywdw.com/calendar/may-2013-walt-disney-world-crowd-calendar/#more-9637
Saturday May 11
Animal Kingdom: 9am 8pm (Highly Recommended)
Mickeys Jammin Jungle Parade: 3:45pm
Epcot: 9am 9pm (Most Recommended)
Illuminations: 9pm
Hollywood Studios: 9am 10pm (Not Recommended)
Morning Extra Magic Hour: 8am 9am
Fantasmic: 9pm and 10:30pm
Magic Kingdom: 9am 11pm (Not Recommended)
Celebrate a Dream Come True Parade: 3pm, Main Street Electrical Parade: 9pm and 11pm, Wishes Fireworks: 10pm
Sunday May 12
Animal Kingdom: 9am 7pm (Recommended)
Mickeys Jammin Jungle Parade: 3:45pm
Epcot: 9am 9pm (Recommended)
Illuminations: 9pm
Hollywood Studios: 9am 9pm (Most Recommended)
Fantasmic: 9pm
Magic Kingdom: 9am 11pm (Not Recommended)
Evening Extra Magic Hours: 11pm 1am
Celebrate a Dream Come True Parade: 3pm, Main Street Electrical Parade: 9pm and 11pm, Wishes Fireworks: 10pm