Race: Breton (or Dark Elf)
Sign: Shadow (or Thief)
Specialise: Agility, Speed
Majors: Sneak, Security, Marksman, Block, Alchemy, Illusion, Blade

Race: Bosmer - Mostly for marksman bonus but also for alteration, sneak, acrobatics and alchemy. Argonians, khajiit and dunmer are aslo good choices but I like the bosmers' marksman.
Specialty: Stealth - gives you a nice starting bonus to marksman (which should I will be keeping as a minor) and stealth
Fave Attributes: Agility (for crazy awsome bow skills) Endurance (endurance because its the only attribute that "needs" to be leveled up early)
Sign:
- Thief - Mostly for the luck bonus. luck makes everything better and is hard to come by. but the speed bonus is nice too. Agility is going to be high enough without help.
Or
- Lady - As mentioned above endurance it the only attribute that "needs" to be leveled up early so I usualy prefer the lady for that purpose.
Majors:
- Blade - When ranged fails (see minors below) get 'em up close.
- Sneak - Makes your ranged attacks "pop"
- Armorer - Repair your bow and blade and control your leveling (reapair every piece of equipment you see to power level and only use when necesary otherwise)
- Illusion - Awsome stealth spells and many other nice effects
- Alteration - Gives you abilities like open (which can replace security at times) and shield (which can replace armor if used effectively)
- Mysticism - Detect life can be a real life saver sometimes and telekinesis can be useful for stealing and reaching things
- Athletics - If you try to use marksman a lot you will want to be able to run fast so your enemies can't hit you. I like to fight with bows at melee range by running circles around my opponents while lodging arrow after arrow into them.

Minors (of importance):
- Marksman - Use this as your main weapon type. It helps to keep your primary form of attack as a minor because it slows down how fast you level up compaired to the number of skill levels you get, giving you a higher multiplier.
- Alchemy - It levels up way too fast to be a major so keep it a minor and use it a lot for a high intelligence multiplier to fuel your illusion and alteration spells
- Security - This levels up fast enough by it's self besides after you do a certain quest for a certain godlike being, this skill becomes moot. With marksman as well, your agility will fly
- Heavy Armor - use this as a minor to increase your endurance without wasting levels. And as mentioned somewhere above, it levels up pretty fast anyway.
- Acrobatics - it levels up pretty quickly so it's good for speed. Speed is needed for the same purposse as athletics.

Other stats:
- Strength - I use marksman almost exclusively if I can. Blade ends up being mostly for leveling up. Strength isn't really that important to me. I travel light and am not afraid to use feather.
- Willpower - You won't be using spells like a mage would be so you wont be needing to be casting them rapid-fire or anything. If you decide that you do want to do that there's still destruction and restoration to train with as minors.
- Personality - Simple enough. Just use speechcraft to make merchants like you before you deal with them. If you run out of merchant just start using it on anybody else. Or purposly fail barters to make them like you less so you can start over. Illusion helps too.
- Luck - Start with the thief birthsign. Other than that... Good luck.

closing notes:
I'd start by maxing out endurance, agility and intelligence first. They will likely increase quickly. After that I would prioritise intelligence. Just be sure to hold off on the speechcraft until at least two of them are maxed out. I usualy do personality after that because its easy but do whatever you want.