Cheers Nigel, Tekminus and Uncle Dave.
I now have a rough idea on where to look. You all seemed to know what I was getting at so I will note down the names of the keyboards, though my head did start to hurt when Nigel got all technical.
And yes Uncle Dave, I know it's about my input and not solely the synths. You're right, I do need to practise more, and I will. But hopefully my bandmates won't give me disgusted looks like they do when I use that jazz scat sound one last time.
Thanks again