kernel build requirements - do I need them, where to get them
 

I'm running fedora core 1 with a 2.4 kernel and for various reasons I'd like to try a 2.6 kernel (mostly because I'm on a laptop and I'd like to have power management). I'm following the kernel howto. It lists some kernel requirements.

I'm trying to figure out if there are really essential or if I can safely leave them out, and if I really need them, where I can get them?

I'm still missing these required programs:
o e2fsprogs 1.29 # tune2fs
o jfsutils 1.1.3 # fsck.jfs -V
o reiserfsprogs 3.6.3 # reiserfsck -V 2>&1|grep reiserfsprogs
o xfsprogs 2.1.0 # xfs_db -V
o pcmcia-cs 3.1.21 # cardmgr -V
o PPP 2.4.0 # pppd --version
o isdn4k-utils 3.1pre1 # isdnctrl 2>&1|grep version
o nfs-utils 1.0.5 # showmount --version

And this is more of a general question: if I need program x, how do I find out the name of the rpm it is in so I can get it with yum?