If the pages are going to have different names, you will still want to do redirects- from the old name to the new one on OR. If they'll have the exact same name, you'll be better off - but from what you just said, most probably won't.

Your home page should stay the same and that's the most important as it's probably the one most of your traffic comes in on.

Get your keywords in place, your titles perfect, etc - as quickly as you can - but I don't see any reason you can't redirect all pages.

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Beth
A Child's Palace - Pinata Palace - Moxie Enterprises

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