**Re: What is the highest level you get by staying in normal?**
well accodring to this

http://classic.battle.net/diablo2exp/basics/experience.shtml
nothing is stopping you to reach 99, but it might be that the sun explodes before you reach it

if I understand that correct, you will only recieve 5% of the exp if you are 10 lvls higher than the monster. In Normal Baal is lvl 60, so you will start to suffer when you hit 70. Then comes the penalty, at lvl 70 you start gaining smaller amounts of exp, which is calculated after you have recieved the original penalty 95% penalty. So by just killing Baal and trying to level from 98 to 99, the math would look something like this:

216862 (Baal exp) * 0.05 (too high lvl penalty) * 0,0059 (lvl 98 penalty) = ~64exp/Baal kill

291,058,498 exp needed to lvl 98->99, so you would kill baal over 4.5 million times

(think in Hell the number of Baal kills was ~11.000)

please don't do this, you'll end up in the loony house

[edit] if someone has the time to play with Excel, you could do the math on lvl 70 to lvl 99, but the number of Baal kills should be tens of millions

[edit2] there might be some other restrictions, not mentioned on Arreat and yes I know, you have to clear the throne room, where the real exp is; but just wanted to play with the numbers, not investigate how much exp you get on average to clear the throne room in Normal;that would send me to the loony house

[edit] forgot my conclusion, I think lvl 70 will be the max that you'll reach, because the leveling from 70->71 will take over 20 times longer than 69->70, as you will then only get 4,5% of the exp you were getting earlier