Well I'm in VA but a MN native and in the Rochester area I remember the lake on the east side of Waseca as being good, and Rice Lake near Faribault. (for crappie) I am from directly across from Rochester on the western side of the state, but lived in Owatonna for 1 yr and fished em then, this was 32-33 yrs ago so you may want some updated info.
One thing I think I can say is prepare yurself for an overall reduction in the size up there. You are going to be in fishing heaven though man! Dont tell the wife this but back home all the boys flock to Rochester to party. Reason: 7-1 woman-to-man ratio due to all the medical jobs. I found this to be accurate info during the year spent in Owatonna. I dipped into the resources available readily. It was everything I'd hoped for. An excellent case of supply & demand.
Good luck, sure someone will give ya a hand.
PS The state hospital is in Willmar. This is where they take you if they see ya dump vinegar in BBQ. Better pack yur own grits too, or get used to likin Cream of Wheat. Yur winter mos. are about to change radically if you never lived up there. Sell that off road mud bogger and pick you up a snowmobile. You are about to experience nirvana when you load up an ice house with good friends & booze, and go to pullin fish up thru the ice.
Go ahead. Try it out. Say it. GO VIKINGS. See, it aint so hard.
It is after you've been with em as a fan since their inception in 1960.