1) Suggest a compatible WIFI PCI Express card that is compatible with HP DV9000
NOTE: I have bought (6) and they do not show up in "lspci" just my original Broadcom does.
My original Broadcom card does not work that well in centOS.
2) Install all drivers and related setups.
3) Install WPA gui (or equivalent) so I do not have to change a config file by hand.
I would suggest that you own a DV9000 and have this running. If I buy a card and it does not come up via "lspci" this will result in a bad comment on your profile.