Since my absence from certain games has come up, I figured I'd post some explanation. My computer was configured through IBuyPower. It turns out, so far as I can tell, that it has too little power supply for all that's in it. Games that max the graphics card out eventually (or sometimes now even quickly) cause it to shut down unceremoniously, usually restarting right away.
At first, because this is tied to high graphics use and fans running, I took it as a poorly-implemented over-temp protection feature (and was still pissed). But, looking at the temps at which it happens and the specs, I'm pretty sure it's not overtemp - it's too much power in use by CPUs, disc drives, GPU, and the fans all at once. It's closely correlated with GPU temp as reported in my system tray by SpeedFan, but sometimes it even happens at a mere 81C, but with the fans spinning like mad. It seems to have been getting worse over time - whether from actual damage or because games are slowly getting more graphics-intensive I'm not sure.
Anyway, there are very few games I can play for any length of time now, and even WoW (which used to "run on a toaster") now sometimes trips the problem. It's only WoW and DCUO right now, of the MMOs I have and care at all about, that I can play. CoH/CoV trip the problem too soon for me to get anything done. LotRO trips it within minutes. AoC I can play, but don't really care about. CO, now that they're f2p, I might be able to play, but I never liked the way it looks. GW trips the problem too soon. AO nobody else plays, and it's hard to get back into it for solo play. And I've stopped paying for anything else, and don't see a need to start again. (Even some of those listed are in f2p mode for me already.)
So, these days, if you want to find me in-game, it has to be in DCUO or WoW. I wish I could still play City, but I can't until I can afford both cash and downtime to upgrade my power supply. ):