I have been searching everywhere for some high res borg ship textures but have been coming up empty. Everything I have found has been low res or a non-tiling texture that would just look bad if repeated over and over to cover any significant areas of the cab.
From a quick search, it seems you might be able to find Borg textures in modeling forums.
My suggestion, however, was to have actual technology parts, in 1:1 scale, on both sides of your cabinet and in the front (below the control panel, around the coin door). There's a few of us with CNC machines on these forums, some may be willing to help. Again, people from modeling forums seem to already have made an incredible job of doing not only textures but also 3D models of Borg stuff, we might start from that.
What would really put it over the top would be not only 3D-machined Borg parts all over the cabinet but have those parts illuminated with green LEDs, to look like the "real thing" (i.e. the same as used on the TV show and movie).
Well, what do
you think? - Counselor Troi