[c-nsp] PIX 506E handling multiple public networks

[Daniel Lacey]

  Dear Sirs,

I have a PIX 506E running 6.3(4)

I would like to handle multiple public IP networks through the PIX, if 
that is even possible.
I will use fictitious addresses to make it simple.

The current setup is pretty simple. The PIX (outside) interface is on a 
subnet with the ISP.
The (inside) interface is connected to a 24 port catalyst 10/100 switch. 
(2900 something).
The current setup statically NATs public to private IP addresses, 
limiting traffic to a handful of well known TCP ports to access WWW and 
some administrative ports.

ISP Router <=======>   PIX (outside) (inside)   <====> Catalyst
1.0.0.1/28             1.0.0.2/28    192.168.0.1        All nodes on 
192.168.0.0/24

Now we would like to ramp up.

Behind the PIX would be a virtual web server farm of potentially 1200+ 
websites that will have individual public IP addresses.
These will be on more than one public IP block of addresses.
We  want to keep the current /28, add a /23, then add another /2X, etc.
The additional networks will be statically routed from the ISP over the 
existing link.
There will be very little traffic for such a large number of nodes, but 
there is about 35Mbit of bandwidth currently available.

My question is:
Can I use the existing PIX to somehow make this work?

Any suggestions are welcome!

Thanks,
Dan