Hi, I'm new here but been lurking for a while. My friends and I were actually discussing this very issue and an idea I had would be to make hacking a Flash Flash Revolution type game but optionally without the sound. If you haven't played ffr, check out
www.xqsite.com.
It's a very simple concept that anyone can learn but can be made more difficult for things that should be more difficult to hack (bases vs. doors). It is also something that can be easily randomized so that it is always different.
This type of game would take different skillsets than the fast action twitch skills needed for combat and I think that adds to the depth of the game. I think it's always a bonus when the natural abilities and strengths of a player makes them better in their chosen role than the next guy.