greetings David, submitting itself is not hard to do, chameleon submitter is very easy to operate - you'll learn in few days.
I personaly use Chameleon and I actually became a member of Chameleon Team too, lol
Chameleon Submitter database will save you the time spent looking for individual sites yourself - and there are currently more than 2000 TGP/MGP sites to go with. It updates daily! and currently has 192 categories! to choose from!
The tool itself is very clear and user friendly.
Also, there are these nice official Tutorials for Chameleon Submitter available, there you can see how to work with this tool properly, how does the software actually look like inside and how to get the maximum out of it. Its been all made interactively in Macromedia Flash, enjoy:
http://www.chameleonsubmitter.com/tutorials.php
and feel free to ask if you have any other questions.