tedster - 7:01 pm on Oct 21, 2008 (gmt 0)

If you have quality original content, those pages should be indexed. The only problem you should see is that your pages generated from other site's RSS feeds will get filtered out of search results.

If a given feed is useful for your visitors, I'd have no concerns. If you are concerned, you could use a noindex,follow robots meta tag on the page to make it clear that you are not being tricky or deceptive in any way.