[H] Understanding Conroe

[Winterlight]

I am going to be updating my P4 3.4 box to a Conroe setup in the next six 
months. The only thing I'm waiting for is for things to shake out, and 
seasoned boards to appear. But there are some things I am not clear about.

I am currently using a dual Xeon 3.06 @ 533FSB as my primary 
workstation.  Does a single  dual core, Conroe processor  have the same 
responsiveness as two physical processors?

Does it have the same independence... i.e. no single out of control process 
can bring down the system? Is there a noticeable difference in use between 
Conroe dual core, and a dual Xeon setup?

For RAM I need DDR-2 capable of supporting 1066MHz FSB ?

thanks