What's wrong with taking a picture of a Dremel and implementing that into your background? So are you people saying you can't take a nice Lian Li case and put that into our background? Take a look at the GideonTech banner for example. It has a picture of a case, heatsink, and power supply. I highly doubt the creator took their own pics of those. I'm sure he/she found those in the net, then merged all of them to create that banner. I don't think that's considered copyright infringement.
Plus, I'm sure the Dremel company doesn't mind. It's like free advertisement. Now if you take a background from DigitalBlasphemy and put Gideontech on it, that's another story. I personally don't think MaverikV did anything wrong. Some people are just lame and don't have anything else to complain about.