Actually a big waste of time submitting to search engines.
One, search engines will find your site.
Two, most search engines draw off

, yahoo and msn.
Thus negating all the time spent submitting to search engines.
Most software and most companies that do this, actually use their own directories, pages, etc to submit your site to.
Bottom line?
Get into

, yahoo and msn.
All the other search engines will find you in short order.
Providing they actually use search bots (most don't as see above, they pull off the major engines).