Well, a Wizard's strength comes from high Intelligence and Wisdom *played DnD a time or two*, but yes, they usually have HORRIBLE physical stats. Because they're mortar cannons who shoots stuff from a distance.
If we DO go with a point system... Start with every base stat at 10
Strength
Dexterity
Constitution
Wisdom
Intelligence
Charisma
When rolling a character, players usually have a chance of getting anywhere from 9 to 18 for a sertian stat (Roll 4 d6's, take the three highest, re-roll 1s and 2s). So give them an extra 20 points to spend on increasing stats. Based upon the class, this will help them round out their characters. A Rouge's gonna have higher Intel and Dex than a Cleric, who'll have higher Wisdom and Stamina (depending on the build and class)
If you want to keep it TPM themed... let's use the Individual Forums as a base for Classes: Fan Ficcer, Fan Artist, Role Player, ASBer, PCGer, ect...
Actually.. if I remeber right. There was a PKMN Trainer oriented game similar to this, where the DM put together the stats from rolling dice and then we could play the character according to our strengths. It was pretty fun though...