Thanks Theo with the talents advice i will remember it when i finally respec again and i went against your advice again as a sweet pair of Daggers found their way to me which goes to show i have to much gold as they were not that cheap.
The Hemo, Ghostly Strike, and Serrated Blades seem to help at the moment with crits of over 900 happening quite a lot so i am happy with them for now .
I am wondering if that Master of Deception talents works as well as i hoped it should though as i am now wandering about killing in Tanaris and find even the same level humanoids do seem to know rather easily when i get close to them , i guess it does say reduces the chance and more effective than rank two which could mean anything but i guess better than not taking the talents at all ?
I am not sure if this will work but was what i was thinking about with my talents at end game for solo use.
http://www.wowhead.com/?talent#fhxcoZ0xcZebfbhGdbAzV0ot
Please feel free to comment on the choices i made there , well i expect someone will say i have missed something out that does better damage but i think its pretty viable if not the best choices.