A small grinding wheel on a Dremel would be nice for that. Ya could do it with a angle grinder but thats a lot more horsepower then you need so be careful.
If you use an angle grinder go for a fine wheel and be sure to wrap the front of your case in protective cloth and clamp it down...
Excellent, i get to follow one of your mods as it develops craig. A friend of mine recommended that i come here to look at your ROGUE mod and i was not disappointed.
Looking forward to following this one.
:)