Questions on FC3 64bit install...

[Andrew Konosky]

I am waiting  for my AMD64 laptop to arrive and in the meantime have 
downloaded and burned the FC3 x86_64 dvd ISO. It booted up fine, but I 
couldn't run the media check on my 32bit system, so now I'll have to 
wait for the laptop to arrive.

I have some questions on the whole 64bit world though. In the 
installation process, are there any major differences from the 32 bit 
version I should be aware of before hand? How good is Fedora at 
auto-detecting the touchpad mouse?

I have read that some applications, such as web browsers are not very 
convenient in 64bit because some plugins (like Flash player) are 32 bit 
and therefore not compatible. I have also read that some 64bit distros 
install 32 bit browsers & other apps for reasons like this. How do I 
tell (or change) which apps are installed as 64bit and which are 32bit?

Also, when using package mangers like yum, how would I go about setting 
up my repos? Would it be as simple as having a yum.32.conf and a 
yum.64.conf? Do 64 and 32 bit packages have separate dependency trees, 
or could a 64 bit program use a 32 bit dependent if there isnt a 64 bit 
version available?

Any links to informative reading, so that I may pass the time while I 
wait anxiously...