It also keeps you legal for both MOT and roadside emissions testing. If you want, I could try and scan the pages of Scoobymag that had the Andy F article and post them up. The thing with the turbo is that assuming you don't want any more power in the future (and the 5 Speed box struggles with too much more anyway), then you are better to go for a turbo that isn't oversized and giving too much lag.
Thanks matey.
STI Bandit has already kindly scanned the article in question for me.