Tournament or Limit ?

[FifthAndRiver]

I've been playing poker for about six months now. The only books i have read are Lee Jones winning low limit book and the first Harrington book. The games I play are limit hold'em, low-stakes no-limit multi table tournaments and SNG's - all online. I still cannot win consistantly at limit, but out of all the tournaments and SNG's i play i'm way ahead. Plus I have more fun at the tournaments. Is this wrong? Should i be concentrating more on limit? I'm thinking of getting Ed Miller's book to help my lame-limit.

Thanks!!