Domain samurai is pretty good when trying to find a domain. It is completely free. Just go to http://www.noblesamurai.com/dojo/
Also I would like to point out if the domain has completely expired then it loses it's PR and backlinks. If the domain is just transferred to you when expiring then you keep the PR and backlinks. That is a very important point to think about if you are looking for backlinks and PR.
Also I would like to point out if the domain has completely expired then it loses it's PR and backlinks. If the domain is just transferred to you when expiring then you keep the PR and backlinks. That is a very important point to think about if you are looking for backlinks and PR.