Macbook doesnt startup, gets stuck at blue screen after langauges deleted

Hi,
Got a mackbook pro running Snow Leapard. I was trying to clean up some space by deleting some language files using monolingual. It started deleting english so i cancelled, and when i restarted it has the grey screen with the apple logo then goes to blue with nothing..
Checking on the net it seems to be the font files. I dont want to just 'reinstall the os'. Surely i can replace the system fonts.
How can i do so?

Easy, read the
Restoring OS X 10.5 10.6. 10.7 - simple overwrite OS method
proceedure here
https://discussions.apple.com/message/16276201#16276201

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