MAYWEATHER V MARTINEZ @ 156...what ye think?

Over the last few days I have been trying to think who Floyd's next opponent could be, provided Floyd beats Shane Mosley, which i believe he will. Since Martinez now has the middleweight title, would Floyd be tempted to try claim a title at a 6th weight class? To me, besides PAC, after Mosley he doesnt have to many options to add to his legacy or make him lots of $$$. And before people come in shouting Paul Williams I think its clear no WW, including Mosley or PAC, want nothing to do with Paul Williams, not beacuse he cant be beaten but because he is too high risk for a relatively low payday. Only true boxing fans know who he is. I personally think Floyd takes Martinez as although he is athletically gifted no doubt, Sergio makes fundamental errors and is often off balance. I believe Floyd is faster and smarter and Martinez is not exactly a huge puncher. Please no trolling like saying he will fight some flyweight blah blah blah those threads are just lame. I just want to see what people think about the above and other credible opponents.