TRDmod ill save you some more " Another computer question " and share what i learnt and im still learning posts. My reccomendation would be Power FC as its cheap and plug and play for your car unless your Really going to need extras.
Power FC (First choice unless you demand more, Or cant get one ie my car)
Motec >(Tied for second)< Autronic ( Seems either ither depending on cost, But Motec if you can justify and afford )
LinkG2
The Rest..
Ive chose the Autronic, Best all round package for me based on the fact i cant get a Powerfc in my car, Good results and feedback from those that use it and have it Tuned by Randell. EG Bazda.
Also checkout some of my recent old posts asking the same questions.
http://forums.toyspeed.org.nz/viewtopic.php?t=48107