I have used Note Tab Pro quite a bit, and I like it a lot.
Since I have to switch back and forth between NT and a
real OS (linux) *grin* I have also installed emacs
on my NT box.
I use editplus available for a free trial version at
http://www.editplus.com
for the full version it's something like 30 shells, but it
has syntax editors for perl, c/c++, html, and java. Other
syntax can be imported but I stick to the basic 4 languages.
check it out, it's the best thing since sliced notepad in
my book.