sdwigint,
While I kinda agree with oldandtired's advice let me tell you the story of the rad's match at my school. First, I'll preface all this by saying that I am not going into rads and I am by no means an expert on the rads match.
I go to a non-top 20 allopathic med school. There were 14 people who applied to rads this year. Of those 14 only 6 got in. The other 8 had to scamble into things IM, FP, gas, and surgery. The main reason I can think of that some of these people didn't match is because they didn't apply broadly enough.
What I mean by that is that they where too picky about what part of the country they applied too. I don't think that it is reasonable to try and go into something as competitive as rad's and actually think you can pick what part of the country you want to go to (unless you're a stellar canidate from a top 10 school).
So, my advice to your husband is to apply to programs all over, apply to A LOT of prorams (i.e. >40), apply to both university and community programs, do multiple radiology roations (i.e. one at your top choice and one at "weaker" programs that he thinks he has a good shot at), work hard and try and get involved in some rads research if possible.
I don't mean to be discouraging but I saw a lot of my classmates screw themselves this year and it wasn't a pretty scene. I wish you and your husband the best of luck.