Funny you should say that. I am considering using homeplug from the router to my PC. Then I can just have the wireless network for web surfing on my laptop.

Homeplugs are Great. It's Official.

(read my many, many tedious posts on the topic...)

Seems to be the perfect solution. A pair of Homeplugs, router plugged into a new extension fed by twisted pair cable and HID is happy cos I haven't ruined the newly painted rooms with ethernet cable.

Andrew,

I've just had a little brain fart. I could (if I'm feeling really brave) run another extension from the new point I'm replacing in the lounge. It would run along the skirting board, and then I'd take it outside, up, and back inside to the box bedroom above the lounge to where my PC sits. If I did this, I'd definitely need the external grade twisted pair cable. Any idea where I could buy that?

Kev.

http://www.adslnation.com/phpapps/catalog/product_info.php?cPath=21&products_id=123
There of course will be other places you can buy it.

Internal cable if inside a black pipe would normally be OK for a short run.