ssl forward / proxy question

[jen@saturn5.com]

hi, 

i have a NAT set up via an iptables firewall on RHAS. i have various webservers 
behind it (and other stuff), but now i'm required by marketing (sigh) to set 
up loads of SSL certificates. since apache/apache2 still requires one ip 
address per SSL certificate, and they mean to do lots of these, i'm wondering
how to set it up in such a way that all DNS points to one external IP address
such as 234.56.78.90. when the packet hits the firewall, something proxies it 
so that it will see the *name* address, and forward it on to a virtual IP. for
example:

there are 3 domains all belonging to the same "real" IP address. 

234.56.78.90 -> www.guinness.com
234.56.78.90 -> www.kicks.com
234.56.78.90 -> www.butt.com

so a user wants to go to www.guinness.com, the IP takes the packet to the fire
wall/proxy/whatever, notices that it's "www.guinness.com" and and will forward t
he packet on to the internal address of 10.31.1.44

user goes to www.kicks.com, and the packet goes to 10.31.1.45

www.butt.com will get forwarded to 10.31.1.46

is there something like this that is possible? 

thanks!!

-\jen