If ExtraTrees is avaliable, you can use the WoodWorker. But you need a bit of Forestry Tree Breeding for get nice Trees :)
The blocks you can create with WoodWorker are very good for decoration.
Here's the imgur álbum for this: http://imgur.com/a/nN7Jd
And the programs:
Turtle: http://pastebin.com/Kb4jFmr6
Computer: http://pastebin.com/783R2LJ4
Button API: http://pastebin.com/CEbN2uyQ
The Button API is the same of the Direwolf20, the only difference is the peripheral side.
The turtle.drop() command works fine with me. I use Thaumic Tinkerer, Thermal Expansion and ComputerCraft to automate this.
Programs not yet finalized, but already works very well.
Sorry if there are typing mistakes, I'm Brazilian