O.k. there is not so bright answers in here.
Simply put: If you try to trick the search engines by spreading your sites around multiple i.p.'s for the sake of boosting your ranking you can be penalized. But if your content is original for each site then you will most likly be fine.
Also keep in mind you don't have to pay more for this either, since you won't be penalized no matter of you have a reasonable amount of sites less then 200 with original content.
In fact the key is the content as far as not getting penalize.
Also keep in mind if they flag your site and check your network to see that you are using a SEO host to trick them YES you can get banned.
Moral of the story trying to trick Google is not worth the risk, your better off just focusing on original content and design. I know people who have got banned it sucks and all the major players that have high ranks and I know allot don't try to cheat.
http://www.google.com/search?hs=tWo&...ng&btnG=Search
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