D.B.
For a Pediatrician I can't give you any good recommendations because I take my two kids to Dr. Salem who is a family practitioner and I don't think he is taking new patients, but it doesn't hurt to try if you aren't set on just a pediatrician. as for an OB-GYN I whole heartedly recommend Southern Illinois OB-GYN with Dr. Tsung, Dr. Schneider, Dr. Jones and they have a new Dr. that I haven't met but have heard really good things about. As for Vision I go to the Marion Eye Centers because they are the only ones that take my insurance and they aren't bad, but they aren't great either. The dr. that I really liked there has retired and I haven't found one that I can't do without yet.
Good luck with finding a doctor for yourself and your wonderful baby boy. Welcome to the Carbondale area!