Newbie need advice on whether to buy a particular domain name

[smiatje]

Hi I am absolutely new to being a webmaster. I am about buy a domain name. I have a perfect one in mind but 2 sites are already present with very similar names. Its like I want to buy <Examples.net> and these two are like <Example.org> and <Example.net> :(
But both sites are almost dormant. Very few articles and very poor quality images and user response. Can the experts please advice whether I can go ahead and buy the one I originally planned to. Cant I keep them at bay by making sure I produce regular and good articles?

[edited by: buckworks at 2:40 pm (utc) on Apr 10, 2013]
[edit reason] Please use "Example" rather than a real domain name. [/edit]

[Lexur]

Yes, you can. :-)
You just need to register your domain, write a lot of valuable content, promote them in the web and get links, be helpful with your users and work everyday on your website. That's all.
The value of the keywords in the domain will not affect the SERPs while all of you have almost the same keywords there in.
There's no .com domain?
There's no issues regarding trademarks?

[smiatje]

Thanks for helping Lexur. :-) I hd plans to buy it tomorrow and your reply gave me a thumbs up.
The .com domain name is up for sale by a domain name trader. He is asking more than I can pay right now.
And no trademarks issue I checked.