もうこんなところまで。。。と感心してしまった。
~/work$ gem install hpricot
Need to update 5 gems from http://gems.rubyforge.org
.....
complete
Select which gem to install for your platform (i386-mswin32)
1. hpricot 0.6 (mswin32)
2. hpricot 0.6 (jruby)
3. hpricot 0.6 (ruby)
4. hpricot 0.5 (ruby)
5. hpricot 0.5 (mswin32)
6. Skip this gem
7. Cancel installation
> 1