I am no great shakes at calligraphy by any means. I like fiddling with it though for several reasons. Partly because I like writing and making little flourishes on cards or letters I write (yes I write letters!). Partly because I find it relaxing and I think it looks nice. But mainly because I was persecuted at school for being left handed. I was made to use my right hand and I still use my right hand for sports, scissors, carrying things. The irony is my writing with my right hand was awful. My left hand writing is (even if I do say it myself) very nice. I often receive compliments on it. And that to me is the ultimate revenge on everyone who used to tell me that left handed people have horrible handwriting. I find that calligraphy pens make my handwriting even better and it is fun.
I generally use either Rotring ArtPens, or Manuscript Calligraphy Pens with left handed nibs. Ink colour varies but it is usually grey or sepia.
You can generally find these in sets which are not too pricey.
I used to do technical draughting when I was younger, using a Rotring Rapidograph 0.13mm technical pen, so I really like Rotring pens. I use Manuscript also because of their left handed nibs.