The Equus are about the best bang for the buck, IMHO
I use a X431 Launch which is Da Bomb
I also use an MTG 2500 snapon as it has all the OBD 1 functions
The launch is superior to any snap on dollar for dollar IMHO
I also use a little code reader for quick checks on the service drive,
Maybe look at the Lauch scanners, like the diagun and a few others.
The nice thing with the launch is you can update online anytime, and if you get say a czheng zao in the shop you can download the software for it too.
All kidding aside, the launch has been pretty kickbutt.
Beside american , japanese, korean and german, it performs miracles on english stuff , like land rovers and jaguars.