I purchased the EFI Live Flash / Scan V2 system. It was about $800. The main reason I went with EFI Live was that I could download a free trial version of the software to learn with. I found .tun files online that I could learn with at http://www.holdencrazy.com/ I like my EFI Live equipment. If you have the time / money to invest into tuning for yourself, EFI Live is a good system. The EFI Forum is an excellent resource http://forum.efilive.com/. Not very many FCS members have experience with EFI Live technical questions.