I found that some of the changes in the magic system(and generally) did balance the game ,for wizards could easily get xtremely strong(and generally there are varius problems in 3rd ed to be solved).
But some of them, i just can't tolerate.
It is like they are trying to castrate wizards ang generally spellcasters.
Did u see disintergrate? It completely sucks now.(Just an example)
They lead players in min/max-ing to be able to boost the DC of their spells in order to cope with more difficult monsters in highter levels.
My group curently plays 3rd ed with some rules of 3.5 and we don't have any troubles.
Reversely, fighters are far more powerfull now.Only one feat for two-weapon-fighting,killer power attack etc. (and many other not worth mentioning now).
So,i don't not like 3,5 at all.I think of it as an easy way to take our money more than an honest attempt to change the game for the better.The attempt ought to be more serius and the changes more radical to excuse 90 euros(+) for books.
---I was so pissed when i saw the 3.5 that i stopped playing the wizard(i am the guy who always plays wizards) and changed to rogue

.
The day i will play "the wizard" again will soon come and those who think that rules lessened our powers will feel sorry..REALLYYY SORRRYY>>>
MHHAHAHAHAHAHAHA
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The Wizard