I'm not sure that you're going to find any better, more specific answers. You can always try out the latest one, and compare it to the one Skuzzy suggests. Benchmark them, and let us know the results and any problems. Of course, have things backed up in case you hose your system. I have no idea what the probability of that occurring is, it was semi-likely back in the day, but I have a feeling the 9xxx series isn't back-in-the-day enough, so you're probably ok.