Hi all
 
Further to a question I asked a few weeks ago, the plot thickens...   Could
someone please give me a simple yes or no to what I'm trying to achieve and
whether the solution I've found is workable?
 
In short - if I buy a SIM card from three.co.uk for £15.99 a month and stick
it in _any_ 3g router that accepts SIM cards, I'm told I will get what I
need.   However their sales guy wasn't quite forthcoming when I asked why
I'd need a usb dongle if I have a router which accepts sim cards.   
 
Question 1: [2] seems to be the device I need.   As far as I can tell, I put
the SIM card into this, hook it up to power and the rest of my LAN via
ethernet and bingo.   Therefore if ADSL goes down, I have a backup.
Correct?   
 
Question 2: I currently have a wireless ADSL router.   Any known issues to
worry about here?   For example, the routers would likely be next door to
each other.   I don't need 2 Wifi networks, could I just switch the wifi
network off that's associated with the 3g connection?
 
Question 3: Most of these routers assume you want to share the 3g connection
wirelessly with the rest of your LAN via WiFi.   I don't.   Therefore
providing I buy a router with an ethernet LAN port, I'm fine aren't I?
 
The reason I'm cautious is the sales guy wanted to sell me a USB dongle and
while I can see there may be routers out there that effectively use the
dongle as an antenna - I can't see why I'd need one if the router itself
accepts SIM cards.
 
>From what I can tell, [1] for example, is pretty much what I need but a) why
can't I get one that just accepts a SIM card - no faffing with USB modems
and b) it looks to run off batteries - I want something always on.   Any
issues here?
 
Sorry this has been a bit of a ramble but this looks to be just what I need
- I don't want to get going with any sort of contract if I'm making the
wrong move.
 
Cheers
Rob
 
 
[1] 
http://www.maplin.co.uk/zoom-3g-wireless-n-travel-router-351516
[2]
http://www.broadbandbuyer.co.uk/Shop/ShopDetail.asp?ProductID=10205&Submit=G
O