Here's another tip Steve-O, especially because you are tall like me. Airplane seats are made for hobbits and wood fairies, so unless you get an exit or bulkhead row you are going to be very cramped. Also, since the world hates tall people, the airline has seen fit to populate said exit rows with the dregs of humanity...typically slumped-over cave dwellers who don't require sleep that have gotten to the airport 47 hours before you did, with barely enough muscle to curl a bag of potpourri...let alone a 400lb aircraft exit door.
In the unlikely event that you DO get an exit row, you will then be treated to a lovely little speech by a charm-school dropout about how YOU will be responsible for assisting other passengers in the event the aircraft turns into a fireball of doom. Of course you nod and say "but of course", all the while thinking to yourself that the real reason you have chosen the exit row, besides the extra legroom, is the fact that should you survive an actual crash (riiiiiiight) you can take comfort in the fact that you will be the very first mofo off that deathtrap.
As a tall person, and as a first-time flyer, you will be treated to the unholiest of all....the airplane bathroom. Seriously dude, you will laugh out loud when you get in there. After you calm down from your laughing spasm, walk out of said lavatory and go find the one designed specifically for wheelchair bound people, which most newer jets have according to FAA regs. It's usually in the middle of the aircraft. You can do jumping jacks in that SOB
If all goes as planned, you will sleep like a baby.
If not, you're gonna wanna to punch one.
So there ya go.
~B