Salary cap is expected to rise to $100m, whenever they agree on a new CBA. I think we'll be in good shape. And based on how they went after FAs this year and how they created those contracts. The numbers will be pretty evenly split for each year.
I don't think we'll have any problems signing Witten, cuz the market has been set by all the other top TEs. Shockey, Gates, Gonzales, Heap, et al.
Roy is a different matter altogether. Donovan Darius contract would be the closest to look at. I was hoping Ed Reed's contract extension would be done, but it looks like that's not going to happen until the end of the year. And I was reading that Reed's injury this year has prolly cost him some money. So I'm not sure how his numbers would hold up.
Of course, I'm no Adam, but I don't mind speculating.