Fuel injection for SBC

[ultiman]

I know some of you have replaced the Holly carburettor on the SBC with fuel injection. The Holly has been compared to a watering can in terms of technology which I can well understand given the exhaust fumes from my Sport.
Question is, what is a suitable fuel injection system at reasonable cost, ideally avoiding a distributor if possible. Type, approximate cost and difficulty rating to fit would be helpful along with how good the result is. Thanks.