well mate I'm also in the same situation as you, I'm after a comp for my 20valve.
but i also asked the shop if the comp I'm lookin at would be ok for turbo later down the track.
so to get to the point the shop suggested the ems stinger which is right in ur price range, but it also seems a good value for money ecu.
however, I'm not too sure, but wouldn't that power figure be more down to fuel system and associated stuff rather than any aftermarket ecu (just a different tune)??
if any other people have some input aswell id appreciate it too.
cheers matt.