Router/Firewall

Ok, I am trying to put together a firewall/router box on my @home connection
and this is the hardware I have so far:

Old Cyrix 6x86 200 (acutally a 166 in the fine print)
cd rom
floppy drive
32 MB of RAM
428 MB hard drive

I am not so sure if the hard drive is of sufficient size... Once I get the
box assembled, I want to install Red Hat 6.2 on it... Can anyone point me
in the right direction for documentation or recommend any good books which
can help me get started on what I need to do after the install?

Thanks