ScoobyGez,
dont run those mods with a stock
ECU. the 99/00
Ecu isnt know for its adaptive ability, so you will run the risk of popping your engine.
As people have mentioned, a power FC or V5 Link will suit your car. power FC's are about $1000 secondhand, and links are about $600.
i got my 99 with a V5 link tuned through ASG for $380, so really cheap.
my car has 180,000kms on the 205, has a VF34, STI Y pipe, Silicone intake, K&N CAI and 3" exhaust and ran a 245hp. my dyno print is on the Horsepower page if you want to look.
Modding doesnt have to be expensive!
good luck, Steve.
PS
Ive got a tuning cable (to hook to a laptop) for a V5 link if you wish to borrow it for a basic tune, then you can drive it carefully to a tuners.