My current home network setup consist of -

Main rig -

AMD64 X2 4200+ Socket AM2 CPU
4GB PC5400 RAM
BFG 7800GTX 512MB Overclocked Version
Creative Sound Blaster Audigy 4 Soundcard
Airlink101 Super G Wireless PCI Card
2 X 200GB Hard Drives
DVD +/- Burner
Windows Vista Ultimate Edition 64-bit

Media Center PC -

AMD64 3500+ Socket 939 CPU
2GB PC3200 RAM
BFG 7800GT 256MB Overclocked Version
Creative Sound Blaster Audigy 2 ZS Soundcard
1 X 250GB Hard Drive
DVD +/- Burner
Windows Vista Ultimate Edition 32-bit

Fileserver -

AMD64 3700+ Socket 754`CPU
2GB PC3200 RAM
ATi X800XL AGP
1 X 500GB + 1 X 80GB Hard Drive
Fedora Core 7
Windows Home Server

All this connected using Netgear WGR614 802.11G Wireless router.