Sorry, should have mentioned that the EQ5 has motor drives and while I am a complete n00b with my current setup I did spend a lot of time in the school observatory a few years ago. Ra and Dec shouldn't be a problem once I've got my head around it all again.
The EQ5 was what I was recommended?
I figured the 20mm would be a good start then I would use the shorter one for getting a closer look?