From ebay (buy it now price: $1,050):
(photo: ebay listing)
Hampstead Mirror from Williams-Sonoma Home (on sale for $466.25):
Greek Key Mirror from Ballard Designs (for $269):
All of those options were more than I wanted to spend. But after some persistent looking, I happened to come across the perfect vintage bamboo mirror on craigslist for $150! These are the seller's photos:
And here it is in its new home above the desk:
I originally thought about cutting off the top part and hanging it horizontally, but I love the detail in the top. Now I just need to decide on what color to repaint it. Any suggestions? White, black, something else?