Abit makes a 1x PCIe 802.11 card
 

ABIT LAUNCHED the first PCIe 1x card I consider worth buying, the Airspace 802.11b/g card.

This may not be as earth shattering as a new high end GPU, but in the long run, it is probably a lot more useful

http://www.theinquirer.net/default.aspx?article=36306

motherboards should come with wireless chip onboard:)