mini wireless pci card for dell 1100

Is it possible for Dell Insprison 1100 for connecting internal Wireless PCI Card...! One of my client needed it... I searched it for Dell Product but it had not given any such product for it also no discribtion about it in the product. One of my enggineer was telling that it can be done but i was thinking does it has any workaround????

Look out for Dell Insprison 1100 Wifi card with antenna.

Look for the link in the following text : mini wireless pci card for dell 1100

Also look for this product given below : The RadioLabs 5.5 dB Laptop WiFi Antenna