Bruins fan - and I'm not gonna pretend I know the Sens needs at center, but Kelly should be a great 4th line/PK/"locker room guy" for you. At 900K, it's a reasonable price, especially considering that he's literally fractured all 3 types of leg bones (although not all on one leg, IIRC). Don't get too mad at this signing if he winds up on the bench for some time - there's a chance it'll go good, but there's a chance it won't.
I'm happy to see him signed by Ottawa. I was actually at the Garden for his last game, and it was a strange sight to see...he took practice fine, and literally seconds after coming over the boards for his first shift, he's curled up on the ice. That's not the way anyone should leave the NHL, so I'm glad he's getting a shot in Ottawa.