Computer Repair Shop needs a logo

I need a logo for my new Computer Repair service. I'd like the color scheme to be a dark green and deep yellow. Black text, etc., is fine. This logo: [login to view URL] really fits in with what I want to convey, though obviously the color scheme is different from what I spec'ed. I'm not a design/Photoshop guy, but I believe that what I want is a vector graphic and could be used on websites as well as provided to my printer for placement on business cards, etc. Whether this is vector graphic or other format, I will need to put it on my website and on printed materials with good quality of reproduction. I would also like to have a text area in the logo that I can edit. The name of my company is Big Nerd Home Computer Repair and I would like the words "Big Nerd" to be in the logo and then be able to edit the rest to show, for instance, "Big Nerd Home Computer Repair", "Big Nerd Remote Assistance", "Big Nerd On-line Backup" and so on. I also must own full copyright to the logo. I've never worked with a designer before, so I hope that this is enough information for you to understand what I want. And, this is my first time using Freelancer, so bear with me throughout this process. Thanks and I look forward to seeing what you have to offer.