first of all

i've never seen a game where the number of exp u need to get to the next level is = to the amount u needed to get to the previous one

with increased levels is increased abilities .. it shouldnt be as easy to go from level 7 to level 8 as what it was to go from level 1 to level 2

make sence?

perhaps: $calc((%l -1) ^ 2 * 50)

which would give you:
* 1: 0
* 2: 50
* 3: 200
* 4: 450
* 5: 800
* 6: 1250
* 7: 1800
* 8: 2450
* 9: 3200
* 10: 4050

obviously level one is where u start .. so thats 0 exp

and as far as hp, just make anouther system which gets in the ball pack of where that should be.. maybe somethign like this: $int($calc(%l ^ 1.5 * 7))
* 1: 7
* 2: 19
* 3: 36
* 4: 56
* 5: 78
* 6: 102
* 7: 129
* 8: 158
* 9: 189
* 10: 221

as far as mp .. i'm not fimilar with that one ..

its realy all up to you .. u also have to deside how much damage different blows take .. based on rand() and the level of the atacker .. and what weapon they used .. .. u have to come up with numbers for all this stuff .. i'm not about to sit here and design it for you though .. if u know RPG's beter than me .. as u should if your making one .. it realy shouldnt be to hard. .. the hard part will be .. codeing the GUI for it .. lol

Cobra^