I know i'm late to this party, but i have this in my .vimrc:

function! New_Plugin(x)
   let mfile=a:x
   let packname=substitute(a:x, ".pm$","","")
   if a:x !~ '\.pm$'
      let mfile=mfile.".pm"
   endif
  execute  ':e Plugins/' . mfile
  :r files/stub.pm
  :0d
  execute "%s/STUB/" .substitute(packname, "/", "::", "g")
endfunction
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This takes a stub file and copies it into a plugins directory (for use with Module::Pluggable), renames the package line and opens it for editing (it also works with subpackages). I also have this:

function! New_Template(x)
  let mfile = a:x
  if a:x !~ '\.tt$'
   let mfile = mfile . ".tt"
  endif
  execute ':e Templates/' . mfile
endfunction
[download]

For template toolkit templates (it doesn't use a stub, but will create a tt template in the correct place).
a