Web/Mail hosting with Dual Wan connections

[domtor]

I'm considering the Nexland ISB Pro 800 with Dual WANS.
My Web/Mail server will be using private IP behind NAT with appropriate ports open. This with the 2 public IPs from each DSL connection I have.
My question is regarding the redundancy I'm seeking and how to acheive it through DNS.
Using different MX preferences I can ensure mail arrives at my server in the event one of my DSL connections goes down.
I'm not sure how to do this for my WEB however.
I can have my DNS entry for my site point to both my IP's but I think this will only load-balance both IP's.
Example: If a user gets handed the first IP address of my site from the DNS server and this connection happens to be down how can I redirect him to the second IP.

Thanks

[Phantom-Vortex]

No ..No it will work you people are getting the wrong idea of this router it uses both connections at 100% regardless what you read of the 50% balancing if one goes down it automatically redirects to the other wan Example: Im playing a game our even stranger im hosting a game and everybody is connected through one connection all of the sudden bam it switches to the other one fully ,pretty wierd huh?The router will redirect to the one thats the most free at the time, point the domain at both ips.;)


http://forums.speedguide.net/showthread.php?s=&threadid=58782