Introduce latency in LAN connections

Greetings,

I am trying to simulate dial up conditions in a LAN. My simple setup
is like this

windows/linux clients are on vlan 192.168.1.1/24 ( HUB ) and have
thier connections SNAT'ed through a dual homed linux router whose eth1
is 192.168.1.1 (default gateway for the clients) and eth0 10.3.4.5 is
in 100Mbps LAN.

Now I control the bandwidth destined to 192.168.1.1/24 by using qdisc
on eth1.

However I need to introduce ~100ms latency to all the connections
from/to 192.168.1.1/24 to/from 100 Mbps LAN. Is this possible ?

I have been through the howto's but all are aimed at improving latency
but i am an odd ball case i know

Some one suggested thatit might be possible by QUEUE'ng the packets by
iptables.not sure how to do it though..

Any help or pointers would be highly appreciated.