I don't know if Zeitronix works with logworks, I've never heard of it, but Zeitronix has their own software that's really killer. It won't log the whole ECU, AFAIK, but I would be willing to bet that Logworks will work with multiple systems. Anyway, the zeitronix is all in one and controls for AFR, boost, EGT, and a user input, as well as logging tps, and rpm... i love mine...
Also, there are two types of gauge, I just got the 52mm one, but I've had both the digital screen as well as the pocketlogger software on my palm. The 52mm is new, but it's friggin cool... here's a pic...