Thanks for the feedback guys.
I think I will order some cheap Chinese ones off ebay and try them out in a test setup (tap off the VP2 console RS232 transmit and monitor it on another PC) and see how well it performs before I integrate it in to my live weather station setup.
and the neighbors… Yep I totally agree with you here and only use wireless when I have to e.g. tablets, mobile phones, etc. I have currently been installing cat6 around my house including a link for my new server which will include my Weather Display execution hence the use of the RS232<->Ethernet converters.