4E is nothing more then getting WoW players interested in D&D. Every race, and class gets spell like powers they can use. Rather wait for what POS they come out when they do 5.0 which they have recently announced
well, if you look you can find all the 3.5 books online, and download them.
It would be illegal to say where tho.
The online SRD and hypertext is quite awesome.
Tho i have to say Ptolus
is incredible if you want to do a more urban campaign and want a lot of resources to use. I played a few sessions of it with my old gaming group and with that amount of resources at my disposal I was really tempted to run my own D&D games