I've written an article ~6 months ago about gallery submitting (
http://www.partnerrequester.com/gall...g_tutorial.htm), basically I don't think that it would make any sense these days to just do gallery submitting as a work for your spare time, as it's too important that you really work hard to improve your submissions list, partner account list, galleries, etc.
So instead of the easiest/cheapest submitter you should rather look for the best one, that fits your needs. And as soon as you have a few good galleries start requesting free partner accounts, as these are really really important these days. And as soon as you have decent conversion rates start working with paid partner accounts.
I run
http://www.PartnerRequester.com, feel free to hit me up on ICQ 344688791 to have a look at your galleries, etc.