I'm not very experienced with H2H, so I'm not sure if balance is as important as in Roto, but I'm not sure either trade makes sense for you. The strength of both Furcal and Rollins is their stolen bases, but you already have Crawford and Abreu, which should pretty well cover steals. On the other hand, if you trade Beckett, your rotation becomes fairly weak. Peavy's good, and Buehrle's very solid, but Bonderman is far from a sure thing. So, unless some facet of H2H strategy makes it good to have a surplus of steals and greatly reduces the importance of starting pitching, I'd probably hold onto Beckett.