I was literally going to post an exact thread like this :L Im in the same situation, not sure who to get, Podolski is tempting but would require paying over 48 months :/
I signed Doumbia in January and he was brilliant, 13 goals in 13 games, 5 assists and an average rating of 7.91
I sold Barrios as I never found him good enough and was playing Doumbia with Groskreuts as my second striker, I really want someone as good as Doumbia now though so I can play two upfront and rotate, I have a slightly bigger budget though.
Do you mind sharing your team mate?