Wifi bridge between two routers

[Neon]

Ok, here goes, please wave if you don't understand, and someone will rush you some popcorn.

What I'm trying to achieve
I want 100mbps network in my room. This cable runs off a wifi hub which connects to the internet by bridging to another wifi ap which in turn connects to a modem and dials out. Also giving a repeater style boost to wifi coverage downstairs.

What I've got
Upstairs, I have a Virmin Media cable modem. This is connected to a Netgear WGT624 Wireless Cable Router (http://www.netgear.co.uk/wireless_cablerouter_wgt624.php). This is serving out a wireless network.

Downstairs, I have a Sky Branded Netgear DG834GT Wireless ADSL modem router (http://www.netgear.co.uk/wireless_broadband_router_dg834gt.php) which I snagged from someone at work for the masterful sum of £20.

What I've already tried
I tried firing up the DG834GT down here and setting all the wifi settings the same as the existing wifi and turning off dhcp. This doesn't work as apparently the modem needs to be switched physically to bridge mode.

I have looked for firmware updates and from what I can gather, both are up to date.

Netgear say this is not possible, btw (http://kbserver.netgear.com/inquira/default.asp?ui_mode=answer&prior_transaction_id=2326929&action_code=5&highlight_info=16777291,129,146&turl=http%3A%2F%2Fkbserver.netgear.com%2Fkb_web_files%2FN101503.asp&answer_id=66808620#__highlight). (scroll to bottom)

Interested in trying maybe
So I was also thinking is it worth testing cabling the two routers together?
Swapping them over, so that the DG834GT serves out the wifi upstairs and the WGT624 can sit downstairs.
I was considering trying this guide (http://www.beatjunkie.de/Router_eng.htm), which explains how to hack the firmware console into making the WGT624 a bridge.

What I don't know
If converting one of the routers into a bridge will be reversable.
The difference between a bridge, repeater, ap and router. I assumed that one passed a WAN connection back to a master router, a repeater just does that, but only boosts signal and the ap and router actually route packets and traffic.
The other thing is, am I on the right track here? Is this actually do-able?

So any comments, thoughts or perhaps previous experience of trying to cobble together this kind of arrangement would be greatly appreciated.

Ta :v

[ez64]

Never tried it but I wouldnt think its very stable.

Wire from AP to AP is always going to be better.

[Elkeeed]

Technically you can have either...

both acting as APs on different channels and they will not talk to each other unless you connect them with a wire.

...or...

you can have them on the same channel, one acting as an AP and one acting as a bridge (preferably with routing if you have multiple machines physically connected to stop all the traffic going out on the wifi unnecesarily) but not as an AP.

The second scenario is possible but complex and requires hardware capable of bridging its wifi interface. (some kit will do it very easily but its not a feature that is well advertised/documented) I would recommend the first scenario if you don't want to learn a lot about wifi/networking first.

[KingDaveRa]

Routers don't always do bridging.

You need a dedicated AP, which DOES do bridging, and use that. Forget the little Sky router. It ain't happening.

Not easily anyway.

Bridging is entirely feasible... seen it done, and done it myself a few times. You just need kit that actually supports it.

Get yourself a proper AP, and save a lot of aggro.

[Neon]

Yes, and thinking about it, the DG834GT doens't have an RJ45 uplink so I couldn't swap them and hack the WGT624 into a bridge, sucky.