I picked up riding again at 54. Bought a road bike when I was 56, so I have been riding road bikes for the last 10 years. Road bikes are my preferred ride, so I have multiples now. Go to a few LBSs and try what catches your fancy and are within your budget. Enjoy the hunt and get what feels right and makes you want to ride more. Oh, by the way, you'll probably still pass your husband on the hills.
Penny
__________________
2011 Trek Madone 5.2 WSD
2009 Trek 2.1 WSD