easy checkin machines s/b located along the walls facing the entrances to the t7 & t8 "corridors" so you won't have to clear security and there was (not sure if it's still there) a cust svc desk opposite the first gate in t8 (80).

http://www.united.com/page/article/0,6722,1118,00.html

if you land in the "60" gates, it's about a 6 minute walk to the last gate in t8 and there is a united "golf cart shuttle" from t6-t8. just turn right as you come to the end of t6 as if you're going to walk to t7/8 and wait. also, if you're a smoker, there is an outdoor smoking patio by gate 66 but it's only open if it's nto raining)

now if you're doing a m/r and the turn-around is within 24 hrs, you s/b able to get your return bp at your outbound (just find a real person as you can't do it with mr./ms easy).