Puremorning.. i have one suggestion for you. I Just searched the web for a while and i couldlnt find any videos of a spider walking. I do suggest though if you have a movie camera or a digital camera that takes videos, i suggest you film a spider walking. This would be your best bet in trying to figure out the details behind their walk cycle. Also, there was a new movie that came out that was about spiders, it was a very cheezy movie. I bet you, you could find some nice spider walk cycles off of trailers for that movie.