Can i watch folders/files for changes with D language?

[Ephrahim]

Hi Everyone, i'm planning on developing a software for 
synchronizing folder contents across multiple computers. The 
software will evolve very quickly into virtual Remote Desktop 
Access system.
So i've been considering C++ for this, its the best in the market 
of all things fast at the moment (Considering the availability of 
tools and docs). But i hate just two things in the language, 
(.cpp + .h files) and no "easy" centralized package manager.
So i'm definitely considering D and Python now, but D seems to 
satisfy my needs as per this software. I've developed very good 
custom server for hardware before, and it performed very well.
So i need your help guys, can you point me to any documentation 
or libraries i can use to watch files/folders for changes 
(delete, edit, new content)?
I intend to make this a command line tool for a start, but i'll 
need a GUI sooner or later. So i also need help pointing me to 
the best available GUI library D has.

Your help will be so valuable and really appreciated sir/ma. I'll 
be waiting excitedly for your responses!

Also i'm very sorry if i didn't post this to the right 
Thread/Forum, i just found this forum and i wasn't very sure 
where i'd post this. Thanks a lot