Fisher is a target if you are taking him Day 3 IMO. But I suspect he won't last until our 5th where I would consider taking him. I mentioned would the Cowboys look at him in the 3rd? I am not sure I'd take him there.
Estime is clearly a 2nd tier back. Yeah, he's not fast but he's not a plodder. The oddity is there are some that think he's slow but want to take Allen from Wiscy, who is likely slower (and tested worse than Estime). But you take Estime, you have to understand you aren't getting a home run guy, you are getting a mauler.
Alt is the only sure fire ND draft prospect. The rest are middle to late round guys IMO. King mentioned Cam Hart. He might be worth a look on Day 3 too.
Hartman? LOL. Great hair. Not a NFL QB prospect. He's your quintessential college ceiling guy. The kid ND took as a transfer this year, Leonard, has a much higher ceiling than Hartman.