Marshall - 5:19 pm on Aug 28, 2011 (gmt 0)
Hi friednly4chat and also welcome to WebmasterWorld.
I agree with Webwork on this, but would also like to point out that if you are so concerned about the domain extensions, not registering them now could cost more in the long run if they get bought up by domain resellers who, basically, hold them for ransom. This happened to a client of mine who, through oversight, let a domain expire. A company snatched it up and then wanted $10,000.00USD to sell it back to them. They weren't going to pay and simply got another domain name.
Bottom line: How important is it to you?