Also: Can I use this simulateneously with other miners for my existing workers on the same machine, like cgminer or what I originally used as a total n00b was GUIminer which I liked actually for GPU
uou can run as many instances as you want i think, i had 8 anker 10 port hubs set up, i would turn one on.... open bfgimer and then do this all over again for each hub..... as each then had there own worker and bfgminer window.
so to answer your questions, i think, yes you can run bfgiminer and then cgminer for your gpu alt coin mining