I have Boromir's attire. I bought it off eBay for over $100...it was a nice Christmas gift
Although Sean Bean is not my Boromir, his costume was awesome and, minus the openly shown chainmail, is very close to what I picture Boromir wearing.
I'll take a picture of myself in it soon. I also have an old bugle horn, which is my Horn of Gondor. I have the broad sword from the movie as well, although I want a long sword because it was the long sword that Boromir truly wielded. The long sword is next on the list. Then the shield. Or whatever comes first.