First of all, thanks for all the replies..you're helping me a lot.
Another preference i forgot to tell you is the handle..i really prefer a western handle..so, at the end..what i'm looking for is:
-no matter the weight..i'm not a professional user
-of course, high quality.
-no more than 200 dollars
IF a knife with theese characteristics DO NOT exists, i will buy the Hiromoto AS, or one of the hand forged with japanese handle you mentioned..