If you haven't done this... well you probably aren't a true DSMer.
Keep this realistic, but pretend money isn't an object for the most part.
Evo boys... this thread doesn't apply to you!
Head - Mild Port, Springs, Retainers
Head Gasket - Fel-Pro PermaTorque
Cams - HKS 264 Intake / HKS 272 Exhaust
Head Studs - ARP
Block - 2.0 W/ 1g Big Rods mated to 2g Pistons (2.3 wouldn't be bad either, but trying to keep it simple)
Turbo - HTA68
Exhaust Mani. - Forced Performance Race Cast Manifold, Ceramic Coated
Intake Mani. - Hawver Motorsports Cast Aluminum Intake Manifold, Thermal Dispersant Coated
Intake - Forced Performance Intake with Recirculation mated with 2g MAS
Boost Control - Hallman Boost Controller
Exhaust - Megan Racing 3" Downpipe (ceramic coated) to 3" Megan Racing Cat-Back Exhaust W/ Megan Racing 3" Test Pipe
o2 Housing - LIPP Cast, Ceramic Coated
Injectors - FIC BlueMAX Fuel Injectors 1350cc (smaller if on pump only)
Fuel Pump - Full Blown 1g DSM Dual Walbro Kit (over kill for sure, sue me

)
FMIC Core / Piping - ETS 'Race' Intercooler Core w/ 2.5" piping and J-pipe, Thermal Dispersant on Core and Piping
Wideband - Innovate LC-1
ECU - Eprom W/ DSMLink
BOV - Greddy Type S
Oil Cooling - Setrab Oil Cooler (thermal dispersant coated) W/ 90 Oil Cooler Housing and Boomba Oil Catch Can
Radiator - Fluidyne Aluminum Race Radiator, Thermal Dispersant Coated
then the other obvious basic mods...