I agree with the Lamy Safari recommendations as a good new starter fountain pen. They also sell extra nibs so it is easy to try out different nib widths with little investment.
For inks I recommend purchasing several different ink sample vials in colors that you think you would like. Many websites (goulet, anderson, etc) have vials for any ink they carry. This allows you to test how the ink will behave on different papers that you normally use. My personal favorite black ink is Sailor Kiwaguro, I've found it to be easy to use on just about any paper (including post-it notes), quick drying, and just enough of a sheen in certain light to make it unique to a normal rollerball pen.
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