The smp beta versions is where nealy 95 % of the points come from. You run this if you have a dual core , or , if you have several machines running, but to get several machines running, you'll need the smp client for that OS, and advanced knowledge of networking. Stanford makes beta smp's all the time, for most platforms, so thats the easy past, if you have a dual core, your all set.
EDIT Most of my point come from the mac in my sig. At least 1400 + of them a day. And i don't have any PS#'s on line....yet