Very Nice! I like it.
Upon closer inspection I don't think it will fit on my board. The ram is in the way unless I move the sticks to the second set of slots.
Gosh, you're a picky fellow, you never said that it had to fit, just that it had to be quiet!!!
AS DM says, some of these Air Coolers are pretty big, here's a picture of mine:
If your RAM is standard design and doesn't have tall heat spreaders on top (My Dominator had these so I had to remove them) then these coolers will sit above them without too much trouble. If this cooler is too big for you (and believe me, when your wife says "Size doesn't really matter darling!" she's lying.) there are plenty of other options available and what I would say is that pretty much any of the 3rd Party coolers available (unless you go really cheap) will be better than the stock cooler and quieter too.
Just as a matter of interest are you using the on-board graphics or do you have a separate Graphics Card installed?