Just an overall remark. If it’s possible, I think you should try to loose the 3D look on buttons etc. because it makes OME look like it’s very old.
I don’t know what you’re coding in, but for my DVD slideshow GUI(coded in wxBasic(a wxWidgets bind on windows), I could include a .manifest file which will allow the program to use the user’s desktop style for all buttons. For me that was a simple way to give the overall app a refreshing new feel.