Agents of Oblivion is a modern/horror setting available from Reality Blurs productions; it too was in Worlds of Adventure. I'm afraid that the "big books" aren't available yet but hopefully they'll be out soon.
Reality Deviant Productions is scheduled to release True20 Cthulhu in the next couple of months. The book just went to layout a couple days ago and should be out relatively soon. I'm not sure when they'll have it ready for hardcopy, though.
There's also Technothrillers, also from Reality Deviant, a modern spy-thriller toolkit. It's got an implied setting but nothing too specific or detailed.
Most modern gaming products assume that you have something you already want to do. As such, they try to give you the tools to do it rather than wed you to their story. Some exceptions (Year of the Zombie comes to mind) go the opposite direction with some success but those are pretty rare. And I'm unaware of any written for True20.
(As an aside, YotZ actually works better with True20 than it ever did with d20 Modern. Simply adjust zombie stats to be appropriate to the various types that setting has, and limit or ban adepts to get an appropriate level of powers, and you've got a fun mondern-post apocalyptic-horror-survival setting that can do whatever you want for however long you want. Overall a decent setting with fantastic fluff, clunky game mechanics, and poor product design. I really wish they'd used a different game system, completely different mechanics for zombies, and that they had proper formatting stuff in their products [adventure summary, index, better tables of contents], but I can't complain about the quality of a setting they produced.)
