You also could look into Mammut's Courmayeur Pants, which use Schoeller Dryskin, an even better fabric for mountain conditions (L.L. Bean used to make a superb pair of pants with this stuff, but alas, they quit doing so). The only rub is the Mammuts cost $179 (www.mammut.ch). But they're great pants!
A cheaper solution is Mountain Hardwear's Winter Wander pants ($80; www.mountainhardwear.com), which have a nylon and polyester blend and are a little heavier than the usual travel pants. A pair of Patagonia Silkweight tights ($32; www.patagonia.com) would provide a warm layer for cold days, without making you feel as if you're wearing fur leggings.
My other choice would be something in wool, but the cost issue comes up here, too. Ibex makes a beautiful pair of rugged wool pants called Guide Lites. They'd be excellent due to wool's all-around versatility, toughness, and warm-when-wet capability. But, at $185, they're a bit dear (www.ibexwear.com).