Looking for new "Family" car Acura RL vs M35

[RojoRocket]

As the title states, it looks like time for us to buy a "grown up car" to replace the Wagon, and these are the likely candidates. I'm looking at '05-'06 models, and would consider the right M35x as well. I lean toward the RL, slightly smaller feel, with shorter wheelbase, and still adequate back seat room, as I would never have the front seats back much, being of slight stature. I love the idea of cooled seats, available only in the "M", but not a deal-breaker. Otherwise, the 2 appear fairly evenly matched, though the active noise cancellation & SH AWD technology in the RL, as well as slightly better standard sound system make it attractive! Anyone have first-hand experience with either car, and lacking that, opinions and their basis?

Glenn