http://www.brockjones.com/dieroller/dice.htm
Here's my solution, from the perspective of somebody who has enjoyed plenty of D&D.
Roll a d8, and then take your profession from this list with the number you get:
- Guardian
- Warrior
- Engineer
- Ranger
- Thief
- Elementalist
- Mesmer
- Necromancer
Now roll a d10, and then pick your race from this list with the number you get:
- Asura
- Charr
- Human
- Norn
- Sylvari
- Asura
- Charr
- Human
- Norn
- Sylvari
For example, if I roll a 6 and then a 5, I'm going to be a Sylvari Elementalist.
When I have trouble with a decision, this is often something I turn to. Perhaps I'm just old school?
Edit: for the sake of the beta, you should roll a d6 with this list:
- Charr
- Human
- Norn
- Charr
- Human
- Norn