d-link DWL-G520 rev B3 & Atenna safety + dlink ag520/ag

Hi,

Just starting to looking into wireless with Mikrotik. Does anybody know if a d-link DWL-G520 rev B3 board will work?

Alternativley I see the dlink ag520/ag530 (a/b/g) will r there any revision issues with these boards? as in dwl-AG5x0.

And a more general question how close can you sit to a anntena the sort giving a 7-9db gain - the rubber/plastic ones you can replace your 3-5db ones with on your consumer access point.

Thanx
Paul

all listed dlink`s work fine with Mikrotik..