I recently had some pages de-indexed due to copied content which was unbeknown to me as I didnt write the pages, I have the task of re-writing these pages, but the question I have is, should I edit the current page(url) or delete the page and start a fresh, if I just edit the original will the spiders come back and re-index?

They will reindex, but it would probably be faster indexing if you used a new url.

Thanks for the fast reply, I thought a new url would be better

if you use new url, you need to redirect it...

Just us the same URI, the SEs already know about it WHY would you want to make them rediscover it???

just rewrite the content and replace the content with a unique article. no more changing of URL. google will just index the new page content.