This is me wearing a belted Shawl Collar Cardigan I recently picked up from the Polo Ralph Lauren Store here in Dallas. It's 79% Wool, 17% Lamb's Wool, and 4% Al Paca...with leather covered buttons. It's structured more like a jacket, but it's soft enough and crushable enough that I would place it on the higher end of the cardigan spectrum vs a true jacket. Great with just a T-shirt for a cool look but warm feel or great when you layer a long sleeve shirt or thin sweater underneath when its a little colder outside.
It was originally $895 but I got it on sale for $266 plus tax after a couple of mark downs. I picked it up on Dec 27th 2009, so you can probably still get your hands on one. Its called the Bedford ES Jacket. By the way, this piece is not on the Polo website, but I saw it in two different Polo stores within the past two weeks.
I don't wear ties with Button Down Collar shirts. A bit shaggy chic for my taste. Since the collar on the shirt I was wearing was a bit on the wide side (not quite a spread collar but close) I went with a full windsor vs a four in hand.