They will sleeve the power cord with any color you want for free.
Xoxide is good too though.
All lighting brands are NOT created equal though! I have 6 different 12" blue cold cathodes sitting around and no, they are not even close to the same.
AC Ryan brand are very deep and true colors, but not very bright.
Sunbeam are insanely bright but the colors arent as deep.
Logisys are somewhere in the middle.
I use AC Ryan in my case right now, but I use a 12" UV and a 4" UV. I didn't want the blinding light, just a subtle glow.