There are a number of options in the area for USSF entry level certification and recertification.
February 19 & 20, 2011 Champaign/Urbana
February 26 & 27, 2011 Charleston
March 5 & 6, 2011 Bloomington
There are clinics all over the state between Jan. 1 and mid March. You must sign up at the Illinois Soccer Referee website in order to attend a clinic.