Does anyone know exactly which PocketWizard and what hardware is needed to talk to a 580EX? by "which" I mean the cheapest model I have a 580 and I want a setup like this: http://www.bryanlbuchanan.com/up/tunnel_flash.jpg Only problem is I'm not 100% sure which PocketWizard it is. Also if anyone has a recommendation for a tripod similar to that (that's inexpensive!) could you let me know? Thanks!