Also Fallout 3 which is out right now is a WRPG and could ease you into the RPG transition. I don't know which way is the best to start as I started out playing Dragon Quest and Final Fantasy when I was 4, so I couldn't tell you if WRPG's would lead to you liking RPGs. I don't enjoy WRPGs as much as a good RPG, (i still enjoy them though) i don't even consider them in the same genre at all.
Fact: Earthbound is the greatest game ever made







