My thread has been pretty well updated but I have some things to add too.

2G MAF - $40
1G Alternator - $60
2G Starter - $60
6Bolt lower timing cover - $25
Tubular O2 housing w/dump - $75
2G Megan Racing Strut Bar - $50
Greddy big FMIC kit for 2G - $400
Greddy Profec B Spec 2 EBC - $150
PLX M300 wideband - $150
2G EPROM ECU - $150
Home made SMIM - $200