Arafat threw a wrench in the works in '93 when he denied the Oslo offering of 90% of what he was asking for
A little correction is needed here(but I do agree with everything else you pointed). Arafat was given PEANUTS! It was by no means a a generous offer as our media CONSTANTLY portrays it to be. It was a humiliating offer that would have turned the West Bank into Bantustans. Here's a link to what was offered to the Palestinian people by courtesy of Gush Shalom(an Israeli human rights organisation) http://www.gush-shalom.org/media/barak_eng.swf

As of 2/13/01 , number of Palestinians killed since the beginning of the new Intifada: 368
Number of Palestinians killed under the age of fifteen : 56 [ 15.2%]
Number of Palestinians killed over the age of fifty : 20 [ 5.4% ]
Number of Palestinians murdered by Israeli security forces AFTER being captured , or simply shot at close range without any provocation
whatsoever: 32 [ 8.7%]
Number of Palestinians murdered by Israeli settlers: 22 [5.9%]
Number of Palestinians who died because they were not allowed to get
medical treatment: 8 [ 2.1%]
Percent of Palestinians killed who were NOT involved in demonstrations or clashes: 44%
Ratio of Palestinian civilians killed to members of the Palestinian
security forces killed: 9 to 1
Number of Palestinians who were officially targeted for assassination
by the Israeli Army: 10 [3.68%]
Number of innocent bystanders who were killed during these
assassinations: 5
Number of human beings who were either killed or injured by
"terrorist acts masterminded" by the most recent Palestinian to be assassinated by the Israeli Army: 0
Number of journalists either shot at or beaten up by Israeli soldiers or settlers: 44
Percent of Palestinian Red Crescent ambulances hit by live ammunition: 68%
Number of cases in which Palestinian ambulances were not allowed to
go through a roadblock: 109
Number of Olive trees and Fruit trees uprooted: 25,00

Source:http://www.humanityonhold.com/facts.html