I am asking for some opions on this weekend.  I will be attending the Cubs/Pirates game Saturday with my kids (ages 12 and 8) and my stepfather (age 68).  It is the first time to Wrigley for my son (8) and the first time for my stepdad since '75, so everybody is real excited.  My delima is this, I usually go to Grant Park to park and then walk to the train station and take the train up to Wrigley, my kids are really looking forward to the train ride more than Wrigley I think.  Now, I here that Lollipolooza is at Grant park all weekend.  How should I do this?  I am coming up from Indy and know just enough about downtown Chicago to be dangerous.  Any suggestions would greatly be appreciated.