My mom, Dad, and I went looking at tuxes yesterday (FH had commitments and couldn't join, but I wanted to scout out some stores.) Anyway, we went to Victor Talbots and Dante Zeller. We only have to rent 4 full tuxes, and 6 vest/tie/shirt combos b/c most of our groomsman have their own tuxes.
I liked both stores but am pretty sure we are going with Victor Talbots. The service there was outstanding, prices a little high, but I'm a firm believer in you get what you pay for. My Dad put on a tux and I almost cired, he looked so handsome. I'll update next weekend when we decide where we're renting.