TGP owners could build their own link pop instantly. Submit ALL the galleries with your recips on them. The #1 spot for persiankitty in Altavista is much about link popularity from all the recips. Also, tell the gallery submitters to put up text links with relevant keywords in the links such as <a href=yoursite>This TGP got hardcore sex pictures</a> if you are targeting "hardcore sex pictures". Or if it's a button then ask for alt tags with your keywords in them.
As for getting all the URLs into a submission script or software. It's getting a little spammy but I'm not affiliated with them and
http://www.submitta.com/ is the ONLY software I know that auto-imports your URLs from virtually everywhere. SubmitWolf and WebPosition don't do that, correct me if I'm wrong. At the very beginning I started with SubmitWolf since that was nearly the only software for stuff like that back then but it wasn't good for the bulk side of submission...
SE traffic is very well worth it I'd say, but like just everything in the biz it also got harder to work the engines. Not because they are so smart, besides google they still aren't I'd say, but because they fuckin don't update anymore (almost). Time ago, when infoseek, altavista and others updated daily, and the others weekly, you could figure out how they work through trial and error in no time. Now Infoseek is gone, Excite and Lycos just don't update anymore, Altavista put that graphic code so you can't use auto submitters anymore (and updates only weekly now, sometimes only bi-weekly), Yahoo takes money, Dmoz editors list their own sites, but hell it's still worth it
. Pay yahoo for listings, work on altavista and yahoo manually, and submit the others with software. Can't go wrong with that, there will be some sales (not only traffic) after a few to a couple months. And it's not rocket science either. Good thing is the SE results are more stable nowadays, takes longer to get in but you stay longer as well.