Well i had to vote for 'other' as the other options were not upto the mark.. The reasons being -
1. No gaming (only) pc needs an i7 980X and/or with 3 480's..
2. No server rig would need that much of power.. Moreover there are other so called server grade PSU's available..
3. What do you mean by a normal computer..?? Since when computers became abnormal..!!! If you are refering to the user then a person hoping to build a rig as mentioned in the first option would seriouslly be abnormal.. If you are referring to a HTPC build (or similar) then the option surely deserves a LOL..
4. This is the most sensible option IMO although if i were to build an overclocked i7 930 build with a couple of GTX 480's, i'd like to have a little headroom left (in terms of power) to pull out the maximum efficiency out of my PSU.. For such an instance, i might opt for the AX1200