Anyone done it before? I saw a cheapish fuel tester from actron that I was considering. http://www.amazon.com/Actron-CP7838-Professional-Pressure-Tester/dp/B0009XQUKC/ref=sr_1_2?ie=UTF8&s=automotive&qid=1254337503&sr=1-2

Will it do the job? Will that show me if/what injector is having a problem?

I have done pop test for injectors but not sure how that one works.