Here are the listings of the Forgotten Realms regions. Each region has specific languages and abilities that can be taken if your character comes from that region. In a few cases, there might also be disadvantages or other things (although none come to mind). I'll start out with the general basics for the Realms, although in this file there are a few more things, such as Greyhawk languages, many professional and knowledge skills, and some magical skills. In my campaign I use a Magic skill of varying type (depending on the magic and the caster - there aren't strict guidlelines, and some spells cross "schools"). All casters do have to take "Mana", an END reserve that refills slowly. If the character wants to get more mana, he merely deletes the old ability and takes the higher one, paying the cost from that (after getting the points for the return).
This information is all in the Fantasy Basics hdp file. The html version can be found at Fantasy Basics html.
Now, here are the abilities and skills from the Forgotten Realms, broken by region: Realm's Regions hdp zip file
The html zip file can be found here: Realm's Regions zip file