Well I'm happy to say that yesterday (July 13th 2010) I completed GTA San Andreas (PS2) to a 100%.
The funny thing is that I have this save since 2006. It is like my 4th or 5th time (not rly sure) thru this game on the PS2 and all that was left for me to do was finishing the fighting challenges at the gyms; hehe the thing is I dont rly like any of the 3 different fighting styles, I prefer the default one. But now that I know that its necesary to loose the default fighting style to achieve the 100% game completion, well... I'm willing to make that sacrifice
Congrats to all who have finished GTA SA (and/or any other GTA) at its 100%.