I am new to this, but I'll try to get up to speed at the meeting tomorrow [0].



There is direct line of sight from my apartment to the CBD and a pretty far view in most other directions as well. 



However my budget is (for now) the limiting factor. However, I would love to 'host' other people's equipment so we can share costs.



[0] http://melbournewireless.org.au/pipermail/melbwireless/2008-July/020917.html