We use and recommend
http://www.tgpwizards.com :
It's free for the basic version.
Concentrates on quality TGP's and not quantity in it's database.
Multiple profiles to allow for different niche/genre submissions.
Auto creation but manual handling of partner and high traffic TGP's.
Downloadable desktop submitter for greater control over submissions.
Automatic resubmission and automatic submission limiting to ensure that rules of TGP's are not broken.
Auto-FTP of created pages.
Excellent support.
As free to try can you afford not to check it out?