Grand Canyon Tour - Book before we go??

Hi, we%26#39;ve got 4 nights in Vegas in September. We%26#39;re planning on a coach tour to the Hoover Dam and a day trip to the South Rim of the Grand Canyon. I%26#39;ve read lots of posts that say we should allow 2 days to see the best of the Canyon, but this trip we%26#39;re short of time. So, is it best for me to continue my online search and then book online for the best deal, or is it something we can book cheaper when we%26#39;re actually there? Also, I%26#39;d like your opinions - is it worth saving money and going from Vegas by coach (yes I know v long trip!) and then a helicopter flight over the canyon, or flying from Vegas and going over the canyon in the plane with a coach tour of the South Rim?

Thanks in advance for your help!

Grand Canyon Tour - Book before we go??

Hi, cant help with all your points, but we found that booking online was cheaper if you wanted to go with a reputable company (Papillon, Maverick). However, we still waited until we got to vegas and then booked online using the internet facilities in the hotel. Only waited until we got there as we hadnt been to vegas before and didnt know if we would want to spare the time to go on the trip. trouble is you cant go all that way from the UK and then not see part of G.C can you! You did have to book at least 24hrs in advance tho, and we went October so dont know if its any busier in September.

Grand Canyon Tour - Book before we go??

It%26#39;s always wise to book in advance.