Living in Florida, I don't get to see tarantulas like I did when we were in Texas. While not as large, Trapdoor spiders are a really neat relative of tarantulas. Here's a male that I found crossing a road recently.
Trapdoor spider (Ummidia sp)
Trapdoor spiders are so named because they build burrows in the ground, and cover the entrance with a hinged, camouflaged "trapdoor." They wait inside for vibrations of potential prey near their entrance, throw open the door, and grab the unsuspecting prey.