I'm also working on Next Door Neighbor, a block that uses lots of triangles. The going is slow, but it does use lots up!
I'll get the link for you: http://quilterscache.com/N/NextDoorNeighbor2Block.html
This pattern uses 16 triangles. There's another one there too so you might check that one out. Hope this helps you decide. Thank you, fronzstore!
Here's a pic of the x and + block: