Excellent choice. Beware though; the learning curve can be sharp for the uninitiated.
If you have no preference; I would recommend starting as a magician as a first class. Can level and make platinum relatively easily; while also not relying on equipment at all basically. They are also very strong solo(in the right areas) and in groups. If you do go magician, you will need to get at least the focus item for fire. The quest is not unreasonably difficult however.
If you decide that magician isn't your thing, a necromancer, druid, or cleric might be another good option. Each class has its strengths and weaknesses; but as a first character it is preferable(in my opinion at least)to create and level a non-melee class that has strong solo and platinum making ability; while also being (mostly) desired in groups. Behold the magician.
The following guide breaks it down further-
http://wiki.project1999.com/Players:Newbie
How far down the rabbit hole do you wish to go?