i supose a software would be ok, but as usual they sometimes have bugs within them etc
of course hardware to have issues.
i would go for hardware/router style
if you are wanting to host a few websites
(is this for clients to) then maybe worth getting a multi ip router/inlet
as it would be better over all, you say about cost etc but a bit of investment and you are good to go, take a look on the net, sure there are some half decent and priced ones.
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edit
but then this is from someone that spends alot on servers etc a month
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Edited by dj air - 18 January 2007 at 2:58pm