if you have a good amount of highly ranked backlings, search engines will come to spider you, it is waste of time.
Submit to all the search engines you can, and avoid waste of time, you should use Hello Search Engine Pro 5 software.
I think with some SE's that will index your site within a few days it might well be worthwhile submitting manually, rather than wait for their spider to find you. For instance, our SE (in my profile) might already have you there (search for your full URL), and if not, you could either wait for us to find you, the chances of which would naturally increase with your current link popularity, or you could request a free priority crawl of your site, and we'd crawl the first 200 pages of your site asap and within a few days you'd be in there already. Although sure, some you might go submitting to and still wait months, so I suppose in the end it depends on how fast an SE will index you vs. how urgently you're wanting to get listed. Where it benefits us is that it helps seed our crawler all the time, espcially if you've got a really interesting site.
SE should find you, not a wise ... I thing it is true, and you need to spend more time to make a SE find you...
You do not need to submit to search engines. Search engine spiders will find your site themselves. But I would still consider adding my site to the important ones, such as google, yahoo, msn, etc... You do not need to submit your site to 100s.
i agree with you bag... but i think, if you want your site to be indexed fast by SE... make some effort... just don't only wait the spider to visit your site... but thats only my opinion