Just to close this out, and maybe get some more advice, I managed to get this working reasonably easily.
A friend of mine had a spare router that was supported by DD-WRT so we did a swap. Easy job to flash the router with the custom firmware then spent a long time experimenting with the settings due to the fact that I do not fully understand all of the terminology (I have come to the conclusion that I know enough to cause myself problems).
Couldn't get 'Client Mode' to work so then tried to configure 'Client Bridge' mode; couldn't get that to work either (couldn't make the two routers 'see' each other for some reason). Ended up getting 'Repeater Bridged' mode to work.
All of my devices were connecting to the secondary router. I had internet access on the laptop via the wireless link to the primary router and access to the NAS from the laptop via the direct link to the secondary router. PS3 can access all shared folders on the NAS. Free of charge - Whoopee!
Only thing is, I don't really know what the repeater mode is intended to be used for. I was hoping that you could explain and let me know if there are any pitfalls please?
Thanks for the interest so far.
I now have contracted a virus/malware which is preventing internet access but that is another story, I have asked for help in the malware removal forum
Edited by valleyboy, 08 January 2011 - 01:24 AM.