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Any service that submits your site to "10,000 search engines" or whatever is a waste of money.
As far as using PPC, such as Overture or Google Adwords - you need to be very selective of your keywords and make sure you exclude words that will not bring you quality visitors.
There are very few real site providing SERPs. I imagine that there are charts or links on the latest who-supplies-whom somewhere on these boards, and that information is certainly avaiable.
And, everything that Patrick.. said!