I know encumbrance has been a much debated topic, and a search of the forum brings up some interesting conversations -- and I know the Trolls said "Just use some common sense" if you wanted -- but simply put: I think the D20 SRD encumbrance rules are just about as "common sense" as it gets for a game with C&C-like mechanics. So, I am about to start a game and we will be using the D20 SRD "Carrying Capacity" rules as the basis for our "common sense" (I am not going to be a rules lawyer or an accountant -- I am just trying to give some guidelines to my group) -- I plan on giving people who have Strength or Constitution as a prime some slack to emulate to +2 ER. Is this a good thing, bad thing, am I going to break something, does anyone care about this? Let me know what you think.
Reference: http://www.d20srd.org/srd/carryingCapacity.htm