How are you plannnig to get rid of the Rosewill logo on the keyboard? Paint over it?
One thing you can try (and I've had decent success with lately) is using a sugar cube slighty dampened with a couple drops of water, and just rub the logo off. The sugar is harder than the paint, but softer than the plastic, and can ususally take those screened logos right off of pretty much anything.
Try it on something junk first of course, but you might find that it works pretty well.