It might be a stupid idea, but it also might not be, but take a look a 2D starfields and read in on the 3D particle systems (good place to start is Nehe). Basically a 2D (or 3D) starfield is a particle engine, only a very basic and easy one. ...
Take a look at NeHes OpenGL particle system and just take out the z-axis (might want to replace the z with the y axis) that should do it.
On the array of records, I have never seen it been done differently, however you could use a TList with a objects, but that would make the program run slow especially when you wish to destroy the object... No record-arrays are the best for particle engines I think....
Hope this helps a little!
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