Who is Sanofi-Aventis gonna buy?

Reuters reports that Sanofi-Aventis is in the market to make an acquisition.
The article states that:

Sanofi has been mentioned as a possible buyer of Dutch vaccines maker Crucell (CRCL.AS), which has a market value of about 1 billion euros, and there has also been speculation it could make a play for its U.S. partner Bristol-Myers Squibb (BMY.N), which has a market value of around $45 billion.

My gut feeling is BMS is not a target. BMS is too big. Various other news outlets speculate while Sanofi is willing to open up it's purse strings....their targets are more likely to be small and mid-level companies. And the word on the street is that Sanofi is content to leave the big mega-mergers to Pfizer.