The best thing would be to create a subdomain structure that tricks google into thinking you have all the TLDs in one. This is a protected secret that is usually only discussed in the private section, but you want to do the following.
commercialemd.com.biz.net.mobi.commercialemd.info
The reason you do it that way is, usually the .info is available. So you have commercialemd.info. But the .info doesnt hold pagerank. Pagerank flows o the .info, but it bounces off as google has filters to prevent .infos from acquiring pagerank.
By creating the subdomain structure, you can make it look like you have any tld, by creating com.commercialemd.info. Now, you have commercialemd and .com in the domain name. Now, the com will be able to hold the pagerank. So you are tricking google.
If you go further by creating subdomains for all tlds on your own domain, you can filter all pagerank to all tlds, even though you only have one. This will get you ranked #1 above all other tlds, cause they are only using one tld, where you are using them all on one domain.
This might need to be moved back to the paid section. Just a teaser for what you will get. PM Grindstone for the membership form.