I started out with the Banks 6-Gun and PDA Bundle (intake-exhaust-module-wastegate) with my LB7 truck. The system worked great.
Buyers Beware:
You can nuke a transmission with the Banks system!
Banks will make a stock tranny last a little longer, but it will also mask a transmission that is having troubles because of the defueling. The issue I had was the tranamission guy would plug in his scanner to the ODBII port and all the power levels would go back to stock because the PDA lost signal to the Banks Module. I would pick up the truck and plug the PDA back in and would slip the tranny. We finally had to take a ride together with the PDA plugged in to replicate my problems.
Having said all that, the systems do work great. I moved to EFILive when I had to put in a new CP3 and injectors. I found a used II mod CP3 pump that required EFILive to tune the idle. I wish I would have just started with EFILive and the DSP5 switch in the first place. I would have saved a lot of $$.
If you are looking for gauges that read the engine systems from the ODBII port, Aeroforce Intercepters work really good and will take 2 analog inputs per gauge for EGT, Boost Pressure (over the stock 35 psi limit-otherwise use the stock MAP sensor and save an analog input), drive pressure, low side fuel pressure, etc. The nice thing about using the electronic transmitters is you can also log everything you see on your gauges when EFILive is plugged into the ODBII port instead of the Aeroforce gauges by using the analog inputs for EFILive.
I am pretty sure that you could get EFILive DSP5 (with tunes depending upon the vendor), exhaust, intake, and Aeroforce gauges with transmitters for less $$ than buying any Banks system and at the end of the day have more flexibility in the system.
Just my 2 cents.