Hi.
The current favorite of the inexpensive G routers is the Buffalo WHR-
HP-54G.
http://www.newegg.com/Product/Produc...82E16833162134
It's reasonably powerful and reliable and can take after-market
firmware if needed for extra features someday. Other routers will
work, but this is one that has been giving good results for many in
the last year or so.
As far as G vs Mimo vs N, well, Mimo is what N is supposed to be. It
MAY be that Mimo or pre-N (N is not set as a standard yet) will work
better in your environment, but the general advice these days is to
wait until it all gets sorted out. Thus the recommendation for the
Buffalo HP.
On the client end, the Buffalo WLI-TX4-G54HP ethernet adapter you
mentioned is a good choice especially if you have two or more
computers together in the same room so that they could both benefit
from sharing the same device. This would work well with your existing
ethernet NICs as well. Less to buy, less to configure.
http://www.newegg.com/Product/Produc...82E16833162168
As far as going through 2 - 3 sheetrock walls, that sounds possible
but getting iffy. Better if you can line it up so that it's windows
rather than walls whenever possible. There is a chart here:
http://wireless.wikia.com/wiki/Wi-Fi#Indoor. Read that wiki to inform
yourself and see the link calculations.
You might start out with these two devices and then see how your
connection is across the house. If it's not good enough, then you can
put a higher gain antenna on the ethernet adapter and/or the router.
The thing about choosing antennas is checking out the pattern it has
and seeing what you need to cover. If the router is on one end of the
house, then go directional with a panel antenna for it. If it's more
in the middle, then you must go with an omni, like the included
antenna, but there are higher gain omnis.
The ethernet adapter will want a directional panel antenna, if
needed.
Again, see how the connection is with the included antennas before
buying higher gain ones. You might need two, or just one. Come back
here and ask for antenna suggestions once you have tested the devices
in place.
This G system with an ethernet adapter as client will work regardless
of your OS or computer. You don't say where your laptop is going to
be located, but it's probably going to have built-in wifi and won't be
N, so that's another reason to just go with G and get higher gain
antenna for the router if needed.
__________________________________________________ ____________________
Another option to get across the house is powerline networking. You
would still get the wireless router, but instead of the ethernet
adapter for the far end, you get this:
http://www.netgear.com/Products/Powe...rs/XE103G.aspx
It would require an ethernet switch at the far end to give you more
than one connection.
Or this:
http://www.netgear.com/Products/Powe...s/WGXB102.aspx
It would require that your remote pcs have their own wireless client
adapters.
Cheers,
Steve