Thanks Omnivorr, Steve and Kev.
I'll keep a tight hold of my voucher till I'm satisfied with my decision.
I'm leaning toward the book after what you've said.
I don't know another soul with a telescope but I've just joined the ASV, and am booked in for their New Astronomers Group classes starting in August (it's SO long to wait!) so maybe I'll get to check one out there.
I actually really want the book and I suppose the barlow could wait till another time when I know a little more and have gotten the most out of what I already have.
Thanks again people.
Molly.
