First of all, let me thank each and every one of you for your invaluable advice! This truly is an amazing community.
I am certain now that I will go for the 10'' scope and probably get a bigger truss in the future. I'm 20 so I don't think I will need additional equipment to carry it around anytime soon. Regarding the increased time for the main mirror to cool off, I would very much like to take the telescope outside earlier and just wait, stargazing with the naked eyes and letting them adapt to the darkness also. I'm so much more excited about this than about any childhood Christmas present!
Again, thank you all! Clear skies!