yes the bridge link is what i wanted to do but instead of linking the 2 together via ethernet i wanted to wirelessly connect. which, from reading a bit deeper into that site, it tells me isn't actually possible with my version of the home hub.
so, you've kind of answered my question but with an answer i don't like lol.
I will continue to use the home hub as a switch to interconnect everything. As one of the macs is already wifi enabled i will just connect via that and i will just have to get another network card or whatever macs use to sort the other one out. I had just hoped i could do something for free.
One way to do it is have a PC on the standalone Hub, wirelessly access the main router and run internet connection sharing. You will need to disable DHCP on the stand alone router as the ICS PC would peform this task. Another way would be to buy an old Access point such as US Robotics as these can act as a client. Connect this to the stand alone router. Again disable DHCP as the client will provide this.