I'm going to be making a paladin class in oblivion. What Race should i be ? Also What attributes, birthsign and class tendency should I pick up?

A few alternative here, so I'll go through most of them.

Race: All races can be used, but soem have racial abilities that are more useful than others. Note: I do not take roleplaying into account here.

Argonian: Poison immunity, disease resistance and waterbreathing is very good.

Altmer: Disease resistance and a high magica bonus are very good, but are somewhat put off by the elemental weakness.

Breton: No real flaws with this race. 50% resist magica and 50 pts fortify magica plus a 50% shield greater power. Only downside is that it does not have combat friendly starting attributes, but that is unimportant at higher levels.

Bosmer: Resist disaese is always good, but nothing else stands out.

Dunmer: High fire resist and balanced attributes. A good choice.

Imperial: No racial abilities of note for the Paladin, but have decent starting attributes.

Khajiit: Eye of Fear and Eye of Night are both of limited usage for the Paladin.

Nord: Comabt friendly starting stats, resistance to frost, a 50pts on touch frost spell and a 30% shield greater power. Only downside is that it have very low starting magica.

Orc: Resist magic(25%) and Paladin friendly attributes. High strength, endurance and willpower. Lacks magica in the starting fase, but can be compensated.

Redguard: Resist poison and disease, and adrenaline rush is one of the better greater powers for a comabt characters.

My recomendations: Breton, Nord, Orc and Redguard.

Birthsigns: The Mage, The Ritual, The Warrior and the Atronach.

The Mage(50pts fortify magica): Solid choice for Orcs, Nords and Redguards since they have good starting health and low magica. Not recomended for Bretons.

The Ritual: More of a RP choice since it gives similar abilities to the D&D paladin, but it isn't all useless. The healing greater power is useful throughout the game though, and the lesser power will always work on the undead.

The Warrior: A good choice for the Breton since it have a low starting health. Redundant for the other recomended races due to high starting value in strength and endurance.

The Atronach: A very interesting choice. It gives a good boost to magica and give a high defence against it, but you have to manage the lack of magica regenration. Experienced or persistant players only.

Attributes: Should be chosen to balance the starting attributes. Intelligence for Nord, Endurance for Bretons etc.

Skills:

Heavy Armor: Basic choice for a Paladin.

Blade/Blunt: Melee is the main offence for the Paladin so at least one should be chosen. The major choice is if you want to focus on 1 or 2-handed weapons. 1-handed with shield is more defensive and 2-handed is more aggressive.

Restoration: Healing is a common Paladin ability.

Block: Nor necessary, but a good choice for a defensive build. Not very useful for an offensive build.

Alteration: Shielding spells are useful, and feather isn't useless.

Destruction: Not commonly a paladin-related kill, but can be used to substitue the smithing and anti-evil abilities used by the D&D paladin.

Athletics: Good choice for an offensive build since it allows you to close up to the enemy fastr and regenerate fatigue while running. Somewhat redundant for a defensive build.

Alchemy: Very powerful healing potions can be made. Worth concidering. NB: Do not use poison if you roleplay.

Armorer: A required skill for any melee focused character, but it can easily be increased as a minor skill. The journeman perk is the most important, at least in the beginning.

Mysticism: A few good spells here, like absorb and reflect. Detect life can also be useful for a roleplaying character since the D&D paladin can detect evil. Also makes it easiler to increase intelligence.

I have tried to make it as neutral as possible it is still very affected by what I think is a "proper" paladin, in this case D&D and Warcraft(no, I don't play WOW).

restoration and sword + sheilds are all you need really