Mechanize users - Mar 2009 - upload big files via HTTP POST

Guys,
I''m trying to upload some big files (350mb) via HTTP POST using
mechanize and I''m getting this:

/usr/lib/ruby/1.8/mechanize/form.rb:102:in `+'': failed to allocate
memory (NoMemoryError)
        from /usr/lib/ruby/1.8/mechanize/form.rb:102:in `request_data''
        from /usr/lib/ruby/1.8/mechanize.rb:255:in `post_form''
        from /usr/lib/ruby/1.8/mechanize.rb:201:in `submit''

any hints?

thanks in advance

-- 
Martin Sarsale - martin at malditainternet.com