I'll post picures in the coming months as I'm still gathering parts, but I think using the GM TBI system is the easiest way to retrofit a car to injection. Ill let you all know how the install goes.
Parts are available anywhere cheap and if you follow the diagrams and instructions Bill has laid out it is a simple install. If you want to get crazy with performance tuning you can, or just mildly tweak it for better cold starts and fuel economy.
Yes, TPI is better, but for most of us on a budget TBI is a good option too.