A further question is if I have Pages can i type in hebrew esaily or is it quite difficult (if possible at all)
To quote from the link you were already given:
"Pages, Keynote, and iWeb have various bugs with input/editing but may work acceptably for some users, especially if copy/paste from other apps is sufficient."
Most people would not use Pages for Hebrew because of its bugs. Mellel is the best app, plus TextEdit, Nisus Writer Express, iText Pro, NeoOffice, OpenOffice, and StarOffice. MS Office for Mac does not do Hebrew.
You can search the Pages forum for Hebrew for user reports:
http://discussions.apple.com/forum.jspa?forumID=1191
If you have other specific questions, just ask.