Here are two wireless Pci cards that work out of the box with backtrack 2 and most definitely works with backtrack 3
Just need to install this patch rt61-cvs you can download it from here: http://rt2x00.serialmonkey.com/rt61-cvs-daily.tar.gz


Linksys wireless pci lan adapter (£39.99 comes with a large anetnna about 8dbi)
wmp54g
802.11b/g
rt61

Zonet wireless pci lan adapter (£9.99 old card got it from a computer fair)
zew1601
802.11b/g
rt61

Setup-Guide

First download the patch from: Here(might need to place it in your root folder)
Then open up a shell and type:

tar xvfz rt61-cvs-daily.tar.gz
cd /root/rt61-cvs-2008011112/Module
make

Then, type:

make install
modprobe rt61

ifconfig wlan0 up

If you have any install problems Try This:

make clean
make debug


To enable injection all you need to type is:

iwpriv wlan0 rfmontx 1

_MaCc_