802.11g needed, External Antenna, High power

Hello...

I need suggestions for an .11g or .11g/a wireless server and laptop
card. My requirements are:

1- external antenna capable, both the server and the card.

2- high power (200mw or so?)... at least more power than your basic
equipment.

I want to cover my home, and beam some signal across the street to a
family member. I have a nice high place to mount the server/antenna.
Can anyone offer some product ideas? I saw some Senao cards, the
rebadged ones as well, on the net... but I need more input.

Thanks

You may not need anything special provided you can place the wifi equipment
near window with clear line of sight of each other, angle is not a problem.
I use standard Draytek Vigor 2600We sending via leaded double glazed window
across 70m of open space and have good reliable connection on notebook with
Vigor PC Card placed behind double glazed door.
You need to experiment with positioning, half an inch can make a lot of
difference.

The Draytek can take external antenna as can Orinoco Gold PC Cards.

By the way 200mW would be illegal, European limit is 100mW.
Regards,
Martin