I wanted to tell you that the Warsaw article in the
English Wikitravel has recently been much improved and could be of use
if you had the time to translate at least a part of it. There is also a
nice collection of images and maps of the city at Wikitravel shared Category:Warsaw.
Feel free to write me if you
think I can be of any help.
PS I've filled the infobox but when I try to save it an error appears, so I'll just put it here for now. Maybe I'm doing something wrong because I don't know Italian. Hope I am helpful; if not, please remove it.