Pair of TP-Link TL-PA6010 AV600 powerline adapters - Gigabit LAN ports, they were used to get connectivity in my detached garage, provided solid 40mbps over terrible wiring - $35 shipped
Linksys WRT54GL - Currently running DD-WRT, this has been rock-solid since the day I bought it - $10 shipped...
LGA775 C2D e6400 - Pulled from working Dell Optiplex 745
2x1GB DDR2 - Samsung branded, has HP part number sticker
2x512MB DDR2 - one Samsung, one Hynix - Both have HP part number stickers
$10 shipped to the lower 48 states for everything OR make an offer on an individual item.
Pics available...