No problemo gjtech, hope those threads may help you decide which brands to buy. If in at any case you're still confused. Just ask around and tsikot peeps are willing to share some of their experiences with some brands. :D
HKS and APEX-i are some of the turbo timer brands. I have the APEX-i turbo timer installed in our trooper. It has other features, such as O2 sensor, etc. However, you will need the appropriate module for this.
Visit this link to view the picture of it: http://www.pbase.com/image/15912826