My wireless router - D-Link DI-711
Both of my laptops have a D-LINK DWL-650 WIRELESS PCMCIA card in them.
My server is connected normally using normal network cables, but my 2nd rig has a D-LINK DWL-500 WIRELESS PCI CARD in it.
Total cost be about 480$, expensive, but worth it, especially because now i can make bathroom trips without having to stop and postin' on AT!!!
Edit: BTW - My system pulls up to 400 feet. I tested it at our local pool, which was 300 feet away, across my house.
Max speed at that distance was 187KBS.