Route Planning
There are many locations that can be used to access the public transportation in the cities to avoid trying to drive downtown and find parking.
If you are a registered attendee, you can part at any of the hotels and get on the free shuttles.
However, if you prefer.....plan a route on Metro Transit
Coming from the South = easiest is 28th Street (by Mall of America) and taking the light rail and bus
Coming from SW of Metro = easiest is to park in Eden Prairie at SW Transit Station.
How to plan using Metro Transit Trip
Use the following link to plan a route with either a departure or arrival time: http://www.metrotransit.com/tripPlanner/Default.aspx
Here is an example of steps to hlep walk you through the process:

After the starting and ending points are entered, click on plan my trip and you will see something like the following :

You can even reverse your route to help give plan on how to get back.
Good luck and see you at the convention!!!