In that case just buy a single multiport 85mbps one.
(incidentally, that's the same type I've been using for about 5 years now with no trouble at all)
If you do decide to upgrade, flog the old ones off on eBay, you'll get a few quid for them.
I think that may be the best way to go, i onlyu want it for the PS3 and wii. thinking of keeping with Netflix, wired would be better than wireless and if I ever did decide to go for fibre and it is a big if, i could update to faster plugs then.
Desktop machine now powered by windows 7 pro 64bit , laptop by ubuntu
On ADSL24 using C&W network.