Consolidating duplicate search listings

Indexed before 301 and path rewrites in effect

[rescendent]

Google et. al indexed my site before all the domains and alternate urls did redirects.

Now the site lists duplicate pages using different paths/domains next to each other in search indexes.

The summaries and titles are slightly different as the pages were updated between spiderings. This is annoying both for users and for log file analysis as well as being bad practice and risking duplicate content filters.

However now 301 redirects have been put in place, for example:

domain.com
domain.net
www.domain.net
301 Moved permanently -> www.domain.com

Mixed/uppercase URLs (e.g. WWW.domain.com/Widget2.aspx)
301 Moved permanently -> lower case URL (e.g. www.domain.com/widget2.aspx)

Per rewriting URLs (e.g. www.domain.com/widget.aspx?id=2)
301 Moved permanently -> rewritten URL (e.g. www.domain.com/widget2.aspx)

Should this remove the duplicates via normal spidering without manual removal? Any extra 301s to apply?

Also will the redirects cause any loss of search ranking? Will ranking from previous paths be transfered? (Mostly to identical domain)

Cheers