Netbase as mentioned below is a good idea.  Especially in December when
their database shadowing product will let you enter transactions on "both
sides of the shadow".

<snip>
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From:   Mark landin[SMTP:[log in to unmask]]
Subject:        Re: HP3000: 24 x 7 -Reply

In article <[log in to unmask]>, [log in to unmask] says...

>
>>4)  Hot Site Backup:  There might be an opportunity to install a
>>duplicate system in the Texas facility.  Are there any high
>>availability solutions out there that will mirror the system in
>>Ohio on the system in Texas in real-time and provide automatic
>>switch-over of users to one system in the event of a failure on
>>the other?
>hmmm.... let us know what you learn about this one :)

NetBase from Quest software does this. Of course, it's not simple....but
you should check it out