Thanks everyone for all the great info! I have experience fishing mountain streams in Utah, so I think I would feel comfortable. My wife isn't as experienced though, so thats why I was considering a guide. Estes Angler is one of them that I've been looking at.
Thats good to hear that fishing can be good in Sept. I wasn't sure about that. I'd really like to catch a greenback. I've caught plenty of colorado river cutts, several pretty nice ones. I've never fished for a greenback though.
Thanks again for all the info