What info you NEED to know about races.

[Xeviat]

I don't know ... gender roles and the race's believes on relationships, love, marriage, and parenting are important, especially if they're vastly different from humans.

My elves do not have marriages, and they do not have a separate word for like and love. Elven couples stay together for short periods, sometimes as short as their five month gestation cycle (I decided that my elves give birth faster, because most of the elf's development occures outside of the womb). The babies are given over to the teenage elves, and the children basically raise themselves. This is a drawback of my elves learning capability; young elves do not learn by being told, they must experience it (to quote a cliche, if you told an elf not to put a fork in an electric socket without telling them what the socket was for or why they shouldn't do it, they're pretty much sure to try). Elves do not know generally know who their parents are (it just isn't important to them as the year/season they were born in and the community they come from).

Vastly different are my Dwarves. Dwarves do not believe in love; love is a derogitory word used to reference when a spouse is having an affair. Marriages are forged for familial/clan benefit. Children are born out of duity, which is helped by the fact that childbirth isn't particularly uncomfortable for dwarves. Dwarven adventurers typically don't fit this mold, because it is the #1 reason dwarves leave their settlements to adventure; they want love.

If you think about just how much imporance we humans place on love, companionship, and parenthood, you'll see why I think it is a very important issue to think of for your setting's races.

[Stargate525]

Well right off the top of my head, you forgot favored class(es).