Hey RJBIII, welcome from another Floridian. I'm down in Sarasota. Where do you and your bro ride?
Anyways, it can be done, but it won't be cheap. Figure $100 for a wheelset (Deore level hubs), then another $40 for slick tires/tubes/rim strips, the you'll need a new cassette (another $30-40), plus two new rotors (another $60-$80).
For that much money, I'd just get a pair of semi-slick tires. Or, just spend the time swapping tires. You'll get pretty quick doing it!
L8R
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"Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming, "WOW, What a Ride!" - unknown
"Your Bike Sucks" - Sky Yaeger