Gentlegamer said:
A spreadsheet for D&D combat? This is at least one reason I maintain that d20 3.5 is not D&D . . .
Which is why you are wrong

wrong

wrong

! If I had had a Personal Computer back in the days of ye Mighty 1e I would have made a spreadsheet calculating different weapons versus armor, and number of attacks for speed factor vs differing speed factors likety split.
I remember many a suggestion to the fighter in our 1e "strictly by the rules" game of telling him to just use his longsword against the skeletons rather than his mace because we didnt have the time to figure out all the ramifications before someone had to go home.
As a DM back then I use to have an accounting ledger to keep track of all the spells cast and their durations. Now I use a spreadsheet on my laptop but the effect is the same.
If people keep organizied the issue of buffing and stat adjustment is relatively simple. A piece of paper, a spreadsheet, and accounting journal with columns, a whiteboard all can be used to write the number of rounds a spell lasts and to mark off rounds passed, generally either at the begining of a round,(my favorite), or on a the player's turn that cast the spell.
As a DM the slowest I ever saw was a group of 3 players playing 18th level characters in a one shot adventure 2 being sneak attack fiends, one being a sorc with improved invisibility. Figuring out the damage for the 18th level unfettered,(rogue/fighter variant from AE) when he hit with his 6 attacks,(full attack progression, two weapon fighting, improved two weapon fighting), his crits(improved critical rapier ) and sneak attack damage per attack(3d6) if I remember correctly, was a massive undertaking. I literaly saw smoke come out of the players ears.
Funny thing is, if the player had played that character regularly, figuring out that damage would be routine, and would not take that long.