i did suggest this :p mines ready to go i just need a DNS provider
Look into no-ip.org
Pretty sure that you can still get a free subdomain on one of their more obscure domains for free, and most routers should have an option for them in the DDNS settings.
This particular scenario poses some interesting issues though in terms of data allowances. My camera isn't anything spectacular, but if I stream it, it uses nearly a gigabyte every couple of hours, and manages to saturate my entire uplink to improve the frame rate (which is 640x480 @ 15fps) - and I'm basically running an ADSL2+ with no congestion and the fastest speed possible (empty sub division with a Top Hat around the corner on brand new copper), so it's unlikely that most people will have more upstream bandwidth unless they're on the NBN (or have an Annex M connection).
If upstream data is counted towards your data allowance, this will add up.
If you run it for long periods - or other people have access to it, you can get a rude shock quickly, and find that your internet connection runs like crap because you have a saturated uplink.
Interfacing regular web cams would be a nightmare as you're going to need to interface it with an app on a PC. IP cams are certainly going to be easier, but you're still going to need to configure your router for port forwarding and get all of that working. And you're still going to have to set up some kind of DDNS service in order for this site to find the camera. Embedding the feed into a page here shouldn't be too hard. The implementation however will be problematic to you if it allows anyone access at any time (ie. bandwidth and data consumption issues).
If it's set up for people to manage to view their own camera only, then essentially all you'd really be doing is wasting bandwidth and directing traffic half way around the world and back (increased latency.. lag as it travels all the way to the reefuge's server and back) when it's not really any harder to view the cameras web interface.
Don't get me wrong, I'm actually all for having the option to view peoples cameras - I like it. The technology and pricing structures we have for Internet however have me highly skeptical of how successful it's likely to be just yet (bring on the NBN).