1. Try this link to find out how Cubase can edit parameters in your Virus
http://www.soundonsound.com/sos/Feb0...enotes0202.asp
I've never really used these features as I just tweek the knobs on the synth and record.
2. Your PC and soundcard should be able to cope fine with Cubase.
I definitley would recommend getting something like Cubase over FL Studio. It's so much more flexible.