My cable is Cat5e. There's a good guide here I've found Cable Monkey reliable.

I only want to spend around 40 quid for the second router decided on a netgear one.

OTOH it may be Cat 6. I think my internal (in the walls of the house) might be Cat 5e though. But I get a Gigabit from my Mac to the router so that's OK!

Yeah, I had a friend on Virgin and his connection was terrible, our video calls would freeze all the time, I hear it depends the local area. As I said before, he went to Zen and since then we've never had a dud video call.

Also, what's nice about Zen is the price you pay won't go up. Ever. Sometimes they even put prices down and when do they will pass the cut on (if you ask!).

When you mention router at the extended location, is that because you want to present both wired ports and Wi-Fi there?

A gigabit switch would provide wired ports without adding Wi-Fi and would be much cheaper (and nothing to configure) if you only want to plug things in.

If you do go for a 2nd router it does not need to be a DSL type as for extending the LAN you are not using its WAN port (only needed on the Fritzbox).

Switch, router. Everyone tends to say router when they may be referring to their modem or their switch, or is it router?

When is a switch a router, or a router a switch?

Hi it will be a second router no switch, but i do want to use second router for wifi as well as wired as the signal in the kitchen at the moment is not the best.
Do tp link or netgear do decent second routers and would it be gigabite adsl connection i need i don't want to buy an expensive one.

Would this router be okay
Visit the TP-LINK Store
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TP-Link 300 Mbps Wireless N VDSL/ADSL Modem Router, Support Modem Only Mode, 1 USB, 2.0 Port, UK Plug (TD-W9970)
Is around 30.00 or would i require a better one?

Like I already suggested, ask in the more general Network forum rather than the specific Zen one

Wouldn't his VM router do as the second one?

And, referring to your and the other suggestions about routers, nobody has mentioned turning off the slave one's DHCP?