the auto to manual?

Here's your shopping list:

Pedals (you need a clutch pedal)
Manual trans
Shift linkages/shifter
Dash wiring harness from a manual
manual ecu
master and slave cylinders
clutch hard liens
gauge cluster (nice to have but not necessary.. most auto cars have the PRND123 on the gauge cluster... manual gauge cluster gets rid of that)

Ummm I think that's it. It's a pain, but it's well worth it when it's done correctly and well.