You can use the followings site to get the domains only if you have won:
http://www.snapnames.com/ http://www.pool.com/ https://www.tdnam.com/
Be aware of the fees though. Above sites allow you to backorder the domains, however does not guarantee you will get the domain (depends on your bids).
If you are lucky, you can register the domain after the pending period etc. which can save you fees though won't secure the domain.
And following site has expiring domains:
http://odditysoftware.com/
Hope this helps.