bisr:

Ragnor: Hmm.. you may want to have a look at http://www.gowifi.co.nz/access-points-802.11.html for Mikrotik and Ubiquiti stuff.

Looking through that list a bit better I can see two ubiquiti products that might do the job, in particular the Ubiquiti PowerAP N indoor AP/router.  So I don't end up just buying an AP, it can replace the router I have too.

There are lots of advantages to buying new and having something covered by warranty. I am going to think really seriously about this one and will ring GoWifi tomorrow.

Thanks heaps for the bit of guidance, this has been very helpful.