Yes, those are 2 durn tootin' great names; if you sell them you should collect some decent coin, even if they're undeveloped. Even though you won't be providing the service (for people to buy or sell USD), you've got the prime names for traffic based on this; you can have a ton of links leading to info for ALL COUNTRIES/LANGUAGES in the world on how and where to buy their USD.
If you don't know how valuable that is, please be patient and don't sell these names quickly. They provide such an obvious meaning and valuable service (or rather, info on the valuable service) that they're absolutely prime; IMO even better than just usd.com maybe not in value of course, but in spelling out a message.
You'd get nice bids for these names at Sedo, for sure. Nice names.