I'm going to be checking out those links, worth.....they better not suck.
One place I like getting relatively high quality dress shirts from is Charles Thyrwitt (
http://www.ctshirts.co.uk/). It was recommending to me by a high falootin fashion designer, and it's been a great find.
They have some fancy high-end stores in Mahattan and London, but they also offer their stock online. These shirts are much higher quality than what you get at Banana Republic, Club Monaco, etc....but at a good price. They almost always have some sort of sale on, so you can get good deals.
They have great french-cuff shirts, slim-fits (if you hate the ballooning effec of most dress-shirts), and even non-irons (which are great for the single man who doesn't have a in ironing robot, err I mean wife/gf).