So, I'm about ready to complete engine work and install, but since I'm inexperienced with Subies, I'd appreciate some motor suggestions.

My donor was a 70k 2006 WRX in great shape (rear ended), so while I'm envious of the engine builds I've seen here, my plan is a basic maintenance overhaul and 'Stage 2' upgrade keeping the stock ECU, turbo, injectors, headers and IC. Here's what I've done so far/ in process:

PS pump & AC compressor removed, Mike's alt bracket and tensioner, Craig's dipstick and filler when done
Water pump, timing belt, thermostat, gaskets and plugs
Cobb Intake, Gimmick turbo inlet, silicone IC hoses
Grimmspeed TGV deletes
Air pump block-off plates
I'm still on the fence of springing for an Accessport or just getting a tactrix cable and opensource tuning
For the exhaust, I'd like to ditch the OEM cat and add a muffler, but no specific plans yet.

The only other mod I'm considering presently is a boost controller (manual/electronic). Would I benefit from one, or is the stock sufficient? Am I missing anything else critical or recommended for this set-up?

Thanks!

Lee