Thank you both again for your replies.
Brain when you said you'd choose the 90 over the 80, were you referring to the LP ED80? If so wouldn't the quality be the same if they come form the same factory?
I understand the the extra aperture would be pretty sweet, but I'll be using the scope on my eq 3-2 so weight is an issue.
And Laurie with NG did they give you that option to use TNT?
Any thoughts on eyepieces as mentioned in my original post?