Over at http://www.heise.de/mobil/laenderliste/ you can get information about the really important information concerning traveling to foreign countries:
Power sockets, Internet Connectivity (Hotspot Directories), Mobile Connectivity (Is UMTS available? EDGE? …)
If you're on a search for usenet nzb file downloaders for OSX I would really recommend you to take a look at the special OSX Version of Sabnzbd over at br41n.com
It's packaged in an .app file and simply works pretty fine :)Simply download it, start it, go over to http://www.localhost.com:8080/sabnzbd/ and start configuration.
It does the whole unrar, par2repair stuff and seems to be in active development