I am an advanced beginner considering a 5 String Bass purchase. I am currently considering an Ibanez SR485 bass. However, I would greatly appreciate any information about similar basses that I should consider in the $600 range. As an aside, what is the deal w/ the current new Tobias basses on the market. I have heard that they are fabulous but I have also heard that they are horrible. What gives??? One other question, I am interested in playing on a fretless bass. However, I have been advised to learn on the fretted first. Is this good advice or should I go ahead and give the fretless a shot as I'm learning?