Sublime is great. I prefer it to notepad++ because it's easier to install extensions. A great extension is emmet - it gives you some really useful shortcuts like so:
h1.main-text>ul.main-mav>li.nav*5
outputs this:
<h1 class="main-text">
<ul class="main-mav">
<li class="nav"></li>
<li class="nav"></li>
<li class="nav"></li>
<li class="nav"></li>
<li class="nav"></li>
</ul>
</h1>
If you dislike the default colour scheme, you can change it to the same as notepad++ in preferences.