Just wanted to give a heads up that I found what seems to be the best deal at the moment for getting Montane Featherlite (4oz) windpants in the US.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&Item=260193274763&Category=64687
I just bought a pair and they came to $49 including shipping from the UK to California. That Ebay user has something like 55 in stock of all sizes. Almost every other source I found on the web was about $70 and 90% were out of stock.
These seem pretty nice from what I've read… Same weight as the Golite Whim, nice and breathable, and have zippers on the side that allow you to put them on without taking off your shoes which is a huge advantage in my opinion. I couldn't find a single other ultralight windpant that had this feature.