I have been stubbornly trying to enchant things and have concluded it is damn difficult and maybe not worth the effort... *sigh*
A friend of mine knows the game very well, and she told me that even with your intelligence and enchant at 100 you still only succeed about 50% of the time.
I am serisouly thinking about having an ring or something created that significantly fortifies intelligence in the hopes that it will aid my enchant abilities.
However, there are many people in the game that will enchant anything you want and even though it is expensive, with all the cash you can accumulate in MW this is hardly an obstacle
Sorry about going off-topic, hopefully somebody here will actually be able to answer your question.