No, I haven't spoken to UIUC. I just assumed that it's probably already too late in cycle to ask for money... However, I might be wrong. Will try to give them a call.
UF 18K v. UIUC 120K. I'd take Florida in this case. Have you let UIUC know about the cost difference of your choices? Maybe they can find you some money, you won't know until you ask.