I live just over 300m away from a house i need to make WiFi comms. with. It
is almost LOS but there are a few trees in the way. Ive been looking at a
few directional antennas on the net, but most are made from bean cans and
pringle tins. On principle, the bean cans look like they should work, but
could anyone please make any suggestions as to their credibility or
liklehood of working!

Any other (affordable!) means to make the comms. using an off the shelf
802.11 card?

thanks!
scott