what kind of "new" DoS attacks are out there? And how can someone detect/protect against them on a Fedora Core 2 box?

I basically need an overview of "working" DoS attacks that are still effective on Linux and ideas or links to pages to protect against them.

Attacks I know about and "hopefully" secured against:
SYN Flood == using SYN cookie
ICMP Flood == disabling it completely from iptable
Spoofed Floods == by blocking all IP's except
valid ones on my subnet

anything else?
Oh, and is it possible to protect against an ARP man-in-the-middle attack?

http://packetstormsecurity.org/

have fun, there is alot to read.......

i was hoping for something a little bit more specific..