How well does WLAN work on Linux nowadays?

[qnx]

Hi!
I'm about to upgrade my home networking, wireless this time =)
I *think* I'll buy D-link's solution (what do you think about it?) with ADSL Gateway (DI-614+). Then some NIC's too: for stationar computers PCI card (DWL-520+). And PCcard DWL-650+ for the laptop. Now my question is: does anyone have experience with that PCI card, D-link DWL-520+ ?? Does it have kernel support? Does Gentoo auto-configure it so I can install Gentoo with that card??
Thanks for help,
Jacob
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