Indoor baseball training facilities???
109087
there is one by my house but it isn't called extra innings, it's okay because unlike at a park, you can actually find 20-30 guys and play a game but it's indoors which really sucks. think of you playing basketball in your kitchen with the trash can, it gets that exciting.
888323
http://www.onestopbaseball.com/TeamPayroll.asp
183636
http://mlb.mlb.com/NASApp/mlb/mlb/official_info/about_mlb/tryout_us.jsp
773522
http://www.nationalsports.com/contact-us.asp\n\nI hope this helps! It is from their web site
434739
try this one \n\nwww.resnicowschroeder.com/news/baseball_2.html
782485
college baseball camps\nwww.collegebaseballcamps.com
610868
go to the 'leagues/clubs' link at http://azyouthsoccer.org/\n\nIf Sereno's not to far away from ya (10801 N 32ND St) they usually have some great rankings on their select teams
388877
there is one called Line Drive but it might be in north side. Unfortunately there aren't many batting cages in chicago.
211374
I believe there's an umpire school (sort of like clown college).  Once you graduate from there, then you can apply for jobs at the minor league level and work your way up (exactly like a baseball player).  You might be able to find some info on the MLB website or try searching for the MLB Umpires Union.
1078589
There is one. At the MLB website. You might need flash for it.
213056
http://www.arenafan.com/teams/?page=clubhouse&team=115
887245
Try Dormer Drills website
727101
http://en.wikipedia.org/wiki/Tennis_court#Indoor_courts\n\nhope this helps.
1058849
The USPA lists one in Charlotte.  Info here: http://www.us-polo.org/clubs/charlotte.htm
600574
Any sports store will work.  Like maybe  Big 5.
826778
I'm not from NY but you should try asking around local gymnasiums and contact the local chapter off AAU (Amatuer Athletic League).  They will point you in the right direction.\n\nAlso, instead of looking closest to your house....look for quality coaching with  emphasis on sportsmanship, academic responsibility, and fundamental basketball skills.
530285
If you have the chance, take the public transportation (lightrail, cable car, etc). It was very efficient for me when I went. There is a lightrail stop that basically drops you off at the home plate entrance.