[bigbee]

For the $10 it costs you to register another domain, I'd say it's worth the price to get the .net, .org, and possibly some European/Asian domains if you can see yourself doing business there in the future. I wouldn't go into companynamesucks.com and the like though - there's no end to the number of such domains that people can come up with if they really want to hurt you. A better use of your time and money would be to make sure you don't give customers a reason to say you suck...