Arrested for DUI in Miami-Dade...options available for a program or plead not guilty?

I was arrested for a DUI on Jan 21....I was not intoxicated but I was out with my friends...I had just got out of the hospital 2.5 months prior with an unknown infection in my ankles that was taken care of with a week stay in the hospital and a slew of antibiotics and other pills...I currently have to take a pill every night for a possibly related medical condition...I was driving my friend's car as they were questionable and I knew I was not. So when I got pulled over I passed the onsite sobriety (he did the eye test twice...i have exceptional peripheral vision...ive been an athlete since I can remember) and there were 4 witnesses in the car (two of them live nearby and would probably attend the trial)...after the second eye test i was placed in handcuffs and taken to the police department...i sat there for awhile and then was brought and asked the do the breathalyzer...i politely declined...I have a degree in chemistry and i remember from college (only a few years ago) we "tricked" a breathalyzer into a false reading fairly easily...I knew I was on some medication many of which are coated in polyvinyl alcohol...I was unsure if any of the chemicals in the medication or the coating would cause any sort of reading so I refused as to not falsely incriminate myself...now, 6 months later, i'm faced with either sending this to trial or accepting the program...ive already dished out about 2k on an attorney (who has yet to even meet with the witnesses and its becoming rather difficult to speak with him) and the thought of the program and the additional 2-3k that it would cost on top of the classes, interlock device etc etc is a little daunting...now before any of you jump on my case saying im a drunk/murder or anything of the sort realize you are then subject to being called a stereotyping, severely judgmental person....i'm a 26 yr old male that has been living on my own and taking care of myself since 18...i have been actually drunk less times than i can count on my hand...i have 2 degrees in biochemistry and one in economics went to medical school for a year and i have a career on top of my own NFP coaching youth volleyball....it is an embarrassing thing to talk to your kids about but i told them the absolute truth as its what they deserve and warned them of the fallacies of our legal/judicial system...im being told from a variety of sources to go with the program and not risk it...but it seems to not be fair nor just for me to dish out nearly 6k in money i dont really have to prove my innocence (we all know innocent until proven guilty is a thing of the past)....what would any of you suggest? any advice would be greatly appreciated....if you're seeking a target for a lecture please seek another question-er...not to be rude but this has been enough on its own without people accusing me of being a criminal...