Hi Lee,
Another beginner here.
I think advices of getting an eyepiece with 7m FL first are spot on. I would look for one which is comfortable to use and not too large. 7mm Delite, albeit not cheap, would most certainly be a keeper for life.
I would also get something for a wider field, personally I would pick one around 12-15mm, probably a Nagler, as those are compact and have a wide field of view.
I rarely use my TV Barlow - prefer eyepieces at native FL.
Happy shopping
