Recently found this forum while searching through various cacti galleries and have been reading a few of the postings. I'm impressed with what i've seen, i.e the community, the plants, the advice and heplful tips, etc.

I'm new to this (user name kinda gives it away)and would like some help to I.D. one of my plants, I have it down as an Uebelmannia but definately not convinced. Anyone?

Image link: