According to Spotrac that leaves the Lions with 2.226MM in cap space. That lines up pretty close to the 2.554MM the Lions are expected to use for draft picks (I don't know if Spotrac includes this or not).
I would imagine the Lions are pretty much done in FA unless Suh signs an extension.
What about that S who wants to come here, do we have room for him? It'd be nice to get a S before the draft..